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1.
To hold something responsible in a positive or negative manner.
All the people with diarrhea chalked it up to eating at Taco Bell.
by Rob September 18, 2003
 
2.
When The Night Is Young, and the hoes are not to be found and your surrounded by the same sex. You Say Fuck It And Go Home
Shit what you doin? Nothin' wastin gas, shit let
s chalk it up....
by macaveli January 13, 2008
 
3.
To Chalk it up, is to make a bong so thick with smoke, you can hardly see through it
Stoner 1: Lets go hit the bong
Stoner 2: Yeah, lets chalk it up

"Damn, that bong is CHALKED!"

"chalk that bad bitch up.."
by hobbin May 12, 2009