When one sits in a particular spot for a long period of time causing the buttocks to ache.
by LaMarDay July 22, 2011
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When your butt falls asleep from sitting in one position too long.
"Oww I've got some major butt lock!"
by M-HO March 10, 2005
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when you sit to long and your butt gets cramped up
Damn man this meeting is so long im startin to get butt lock
by reptilegod324 July 11, 2008
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A butt locker is a thing a person can do to another person, for their own personal reasons. Butt locks often happen in changing rooms of any gender, as it requires 3+ people to do it, and can only happen when all have a bare butt out.

If you wanna do a butt lock you need gorilla glue, and a person not aware of the situation outside the room.
You just simply put gorilla glue on your butt together with another person, then you wait until it's completely hardened.
After you have done all this you call the unaware person and ask for help, and watch them break down when they realize what you did.
Jennifer butt locked Sarah again, this time in her own bathroom, and without any other people around :)
by Crinmip4 March 13, 2023
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