Jack Koff

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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Jack King Koff

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 07, 2017
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