Top definition
The measurement of a bongs full capacity reaching the top of the neck but does not include smoke inhaled. Usually used in the context of bong that needs to be cleared or when newbies need others to milk it for them.

commonly shortened to "stack"
ex.1
"She cleared like 3 stacks out of my straight shot.."

ex.2
I don't wanna finish that stale smoke stack!
by KHANO June 22, 2011
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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3
When ones butt cheaks are tightly pressed and flatulance is released. The resulting crevace functions as a vent upward for the rising flatulance.
"I was sittin in class and I couldn't squeeze this monster fart out, I just had to pull the old smoke stack."
by Iamthestallionmang May 16, 2005
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4
A sexual act in which the participating female rips a fat bong, holds in the smoke, and performs oral sex while the smoke pours out of her mouth. In some cases, violent anal sex is had afterwords. This is sometimes followed by a mean batch of Denny's pancakes. Word.
Yo get this shit. Last night, I had my girl rip a bong of some OG Kush and she gave me a smoke stack!
by YoungbloodHU October 14, 2010
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5
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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6
Guy 1: Josh totally smokestacked her.
Guy 2: Wow that sounds dangerous
by Ocooto July 23, 2017
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