SMBT - Suck my big toe
You're such a nob SMBT
by Hornicus August 12, 2010
means "suck my big toe".
guy one: oh my god. i had a threesome last night.
guy two: was your girlfriend there?
guy one: no, she can smbt. she was never any good at it.
by nunsaresxc January 27, 2012

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