a pseudonym you use when you have to sign up for something really quick or just want to have fun.

Jack mehoff (aka Jack me off)
Teacher: Ok class, welcome to grade 9 science. This year I will be your teacher. You, young man, tell me your name please?

Jack

Teacher: Last name?

Mehoff

Teacher: That's a very unique name.

*30 minutes later*

Teacher: Jack Mehoff! JACK MEHOFF!

*Class starts laughing*
by sock mydong July 25, 2020
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Jack Mehoff is that guy that acts gay so much that some people think he is gay. He has a schlong so massive that it has its own gravitational pull. His unmatched sigma male testosterone levels are enough to make any guys treaties crumble.
-He’s almost as gay as Jack.
-Who’s Jack?
-Jack Mehoff.
by jackmehofff69 December 1, 2021
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It’s a phrase that is uttered when someone defaults on a personal debt and then doubles down with some excuse and asks for more. It is an action of frustrating disrespect.
He keeps avoiding me and then asks for more help. “Can you stop Jack Mehoffing me right now.”
by DaddyBiggumz November 27, 2022
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