This phenomenon occurs when a man or woman has a beer belly and s/he wears a belt in the middle creating a bum-like effect.

See photo: This phenomenon occurs when a man or woman has a beer belly and s/he wears a belt in the middle creating a bum-like effect.
Amaya: Ashleigh, do you think this belt looks nice?
Ashleigh: nah. I think it gives you double bum tum
by No dbt August 16, 2015
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