Definitions by Brandon M Hall

twerk 

to shake one's ass rapidly

Alvin: "man, you never heard of twerking?"
Cibor: "What's this you speak of, twerking?"
Alvin: "iTS WHEN A GIRL SHAKING HER ASS ALL UP ON YOU, USING HER BACK AND SHIT"

twerk by Brandon M Hall June 27, 2006