To smoke marijuana

comes from pokemon ''koffing'' and actually when you ''koff' a lot you usually ''cough''
I koff a lot
by jean_nic January 13, 2011
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Marlborough slang for a beaut coat for haineing outsoides in
Just getting my 'koff before I go outsoides for a haine
by hucket February 24, 2008
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A gag name, coming from the phrase "jack off"
The man named Jack Koff, subject to chuckles, ran onto the pitch for the Miami Dolphins...
by Cornish surfer boy September 29, 2021
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The name you give yourself when you see that your penis is at least 8 inches long.
Hey man, my dick is 8 inches long, so just call me "Jack King Koff"
by DallasFanFTW June 8, 2017
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