by Skinhead April 27, 2006

by zachori January 09, 2021

The act of sitting on the toilet and masturbating violently with one hand and smoking a joint with the other, while taking a big, greasy dump.
Chris was so tense from his bad day at work he needed to go do a smokestack in the bathroom before he could calm down and hang out with his friends.
by DLTC December 15, 2008

The act of male masturbation involving both hands, and upon climax, the ejaculate appears to be a stream of smoke out of the top of the "stack".
by Sore Junk November 15, 2009

A thoroughly uncertain form of anal pleasure, usually by rimming. It does not have to be by just one person. one can also smokestack oneself. It always is a pleasnat feeling that can perhaps be both messy and violent.
I smokestacked Justin last night.
by James Foely April 21, 2006

-Hey did you go to the Timber Creek footbal game on friday?
-Oh you mean the horrid smokestack that the other team put on us? Yeah i was there.
-Oh you mean the horrid smokestack that the other team put on us? Yeah i was there.
by MickeyChickey October 04, 2003

by ConsuelaTriForce May 09, 2014
