I said-a hip, hop, the hippie, the hippie To the hip hip hop-a you don't stop the rock It to the bang-bang boogie, say up jump the boogie To the rhythm of the boogie, the beat

I’ve always thought this was a pretty good one:

real G's move in silence like lasagna

They call me the Hiphopopotamus

My lyrics are bottomless

I like big butts and I cannot lie

Or

when a girl walks in with an itty bitty waist and a round thing in your face you get sprung

Really that whole song is a masterpiece.

fuck tha police

On Doomsday, ever since the womb ‘Til I’m back where my brother went, that’s what my tomb will say

Right above my government; Dumile. Either unmarked or engraved, hey, who’s to say?

-MF Doom, Doomsday

I really love the wordplay with his government name 'Dumile' having a double meaning of 'Doom'll lay'. There are a bunch of other MF Doom lyrics in contention for goat status, in my opinion.

fuckin magnets how do they work?

"In the time of chimpanzees I was a monkey"

Ice cream scoopin', shittin' poopin', shittin', poopin'

But more seriously, MF DOOM (RIP) is one of my favourite artists, but he's been covered in a few comments already. But one of my favourites from him is:

Getting paid like a biker with the best crank
Spray it like a high-ranked sniper in the West Bank

interior crocodile alligator, I drive a Chevrolet movie the-atre

Head to Bali, smoking cuban cigars, And we fuck up the party like acoustic guitars

"fuck up the party like acoustic guitars" always cracked me up so much.

"I bomb atomically, Socrates' philosophies and hypotheses can't define how I be dropping these mockeries"

I don't know if it's the best of all time, but I really enjoy this from Common ('Sixth Sense’):

I start thinking, how many souls hip-hop has affected
How many dead folks this art resurrected
How many nations this culture connected
Who am I to judge one's perspective?
Though some of that shit y'all pop true it, I ain't relating
If I don't like it, I don't like it, that don't mean that I'm hating

As I walk through the valley of the shadow of death, I take a look at my life and realize there's nothing left.

Real Gs move in silence like lasagna.

One for the money, two for the better green

3,4 Methylenedioxymethamphetamine

It drops deep as it does in my breath. I never sleep, cause sleep is the cousin of death.

My love is like lightening. It gives girls orgasms. My dick is like an airplane. It gives girls orgasms.

My dandy voice makes the most anti-choice granny's panties moist

Thinkin' of a master plan
'Cuz ain't nuthin' but sweat inside my hand
So I dig into my pocket, all my money is spent
So I dig deeper but still comin' up with lint

You're waxin' your modem, tryin' to make it go faster

Hey fella, I bet you're still livin' in your parents' cellar

Downloadin' pictures of Sarah Michelle Gellar And postin' "Me too!" like some brain-dead AOL-er

I should do the world a favor and cap you like Old Yeller

You're just about as useless as jpegs to Hellen Keller

If you got bad breath then maybe try Scope

And if you wash your ass you best use soap

What good is takin' over When we know what you gon' do? The only real revolution happens right inside of you

I'm sorry, Puff, but I don't give a fuck
If this chick was my own mother, I'd still fuck her with no rubber
And cum inside her and have a son and a new brother
At the same time and just say that it ain't mine—what's my name?

"I take seven kids from columbine, stand'em all in line, add an ak-47 a revolver, a nine, a mac-11 and it'll solve a problem of mine and that's a whole school of bully's shot up all at one time."

So this lyric is notable, not just for being edgy, but also because it was a product of it's time. It was published during the height of tipper gore and hillary clinton trying to appease the "moral majority" by attempting to censor rap music which is called out in the album.

Ultimately the lyric is self-censored because while the artist could have gotten away with it, the label was playing it safe, even though nothing about the lyric would have tripped the moral panic alarm. After all the rapper was white referencing a white event.

"Who's that peekin' in my window? Pow! Nobody now"

Picture this I'm a bag of dicks Put me to your lips I am sick I will punch a baby bear in his shit

I seen his feet and they both lefty

He's only steppin half correctly

Step up in this motherfucker just a-swingin' my hair.

Biggie: "Fuck the state pen, fuck hoes at Penn State" or "Now honeys play me close like butter play toast"

"Dead in the middle of Little Italy, little did we know that we riddled some middlemen who didn't do diddily."

"Life's not a bitch, life is a beautiful woman. You only call her a bitch 'cause she won't let you get that pussy." - _Daylight_Aesop Rock

Have you ever had sex with a pharaoh?

I put that pussy in a sarcophagus