Place a straw in the hole of one's ass and insert the other end of the straw in someone's mouth. Works well with ass chili or butt mud.
by Ol' Ky Dad March 20, 2009

by JUSTIN MCFAYDEN August 26, 2003

by Percy October 22, 2003

its when your taking a shit, and the poo is just hanging out your ass, so you shake your ass back and forth so the poo falls out.
Person 1 : i had a hard time taking a shit, but i poo shaked and it was all in the good
Person 2 : i love penuz.
Person 2 : i love penuz.
by funnyshit November 16, 2006

in the kelis song ''my milk shake brings all the boys to they yard.'' it really means her blow job brings all the boys to the yard coz milk shake is when a girl give u a blowjob u gets the cum and froths it up in her mouth meaning milk shake
by Pun May 13, 2005

The post-anal-sex act of placing a straw in your partners anus and sucking out the mixture usually consisting of (but not limited to) semen, fecal matter, blood, sweat, etc. Generally used in the homosexual sub-culture but has recently popped up on the radar in the straight community.
After I got through pumping (and blowing my load in) gary's stink star, I put a straw in and enjoyed me some good ol' BUTT SHAKE!!
by joeydnewyork September 12, 2011

by RideDucati May 29, 2016
