To blow smoke up one's ass. To lie. To tell a fib.
"Dude, I totally had sex with three girls last night."
"Man, stop smokestacking!"
by ConsuelaTriForce May 10, 2014
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To vape on top of a car or truck.
“Dude, we’re going to go smokestacking in the Walmart parking lot.”

“My dad bought me the wrong mustang so I’m gonna smokestack on it till the roof breaks.”
by nacpalm September 27, 2019
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very hot woman who sparks instant arousal upon viewing
Dude, that chick is a total smokestack.
by Skinhead April 12, 2006
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when a girl gives you that sloppy toppy gluck gluck 9000 while blowing smoke on your schmeat
“yo babe can you gimme that smokestack?”
“yeah papa smurf just lemme grab my nic stick
by zachori January 9, 2021
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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 March 27, 2007
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name for chain-smoker, cigarette worshiper -we actually called a guy at my job smokestacks, it fit perfectly!
damn, i was breathing pretty good, -but here comes smokestacks!!!
by michael foolsley November 23, 2009
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Guy 1: Josh totally smokestacked her.
Guy 2: Wow that sounds dangerous
by Ocooto July 23, 2017
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