some personal favorites from the top of my head:
rza: "Nine inch long strong, Bobby pop the bitch thongs / Spit on her, then I banged on my chest like Kong"
doom: "have it your way, raw no foreplay / thats you if you want a dude who wear a mask all day"
big l: "I went from standin on the corner selling cocaine to ripping shows live on stage with hoes yellin my name"
keith: "back on the scene to put a lesson out / even if I have to pull a black Smith and Wesson out"
camp-lo: "the Garcia Vega substitutes when the Dutch is gone"
nas: "I sip the Dom P watching Gandhi"
phife: "I got more game than Parker Brothers Phife Dog is on the mic and I'm smooth like butter"
mos: so tell your boy, your crew to retire / before I make they ass catch fire like Richard Pryor"