Top definition
The juice(sweat)released between your balls and butthole, after a long days work.
Please wash your hands, I know it has butt chum on it.
by Cole B. October 22, 2007
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2
1. explosive dhiarrea

2. Someone thats being a complete jerk
1. The little boy was so sick that he shot his buttchum all over the bathroom stall.

2. Dude, just relax and stop being such a buttchum
by angrysmurf October 13, 2010
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3
When you get a slimy and gooey substance on the creaks of your anus.
David Tong got loads of butt chum when he ate too many rice cakes.
by FreeDong2016 May 14, 2017
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