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3 answers

To work very hard at something...

2007-07-27 04:43:14 · answer #1 · answered by Anonymous · 0 0

Isn't it 'bust your gums" as in to pop a person in the mouth?

2007-07-27 11:42:29 · answer #2 · answered by Anonymous · 1 1

I thought it was "bust your buns" as in working your butt off.

2007-07-27 11:48:05 · answer #3 · answered by lighthousecastle 4 · 0 1

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