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when ur having sex and a girls tryes to jack off for you except she grabs ur balls instead
dude my mom just balljack me last night!
by dwrek June 13, 2008
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When a person is a jerk or is really rude. Maybe when someone throws a fit like a toddler and they are a grown man. Or when they suck up to their boss and never take responsibility for their screw ups. They never do what they say they are going to do. It can be used as a noon or a verb. They lie and don't admit it.
That dude is such a balljack.

What a balljack.
by Sunnyfor20 August 03, 2018
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Is gay
Friend: *Tickles your butthole without consent, then tries to eat you out and steal your juul*
You: Quit being a balljack
by balljackhater2000 February 21, 2018
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