1 definition by gngpstl

Top Definition
SMBO is an abbreviation meaning spit my beer out. Replacing the term LOL.

This term was made up by a mailman in northern ontario. He SMBO's alot.
Was chatting with a friend on facebook while having a beer, he sent me a funny message as I took a drink, and I SMBO all over the computer screen.
by gngpstl September 06, 2010

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