n. Short for "Submissive." The submissive person in a BDSM relationship or encounter.
I'm really more of a sub, myself, but I could learn some dom skills.
by Bad Grammar Must Die April 16, 2003
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Abbreviation for subliminal. An underhanded comment directed at a specific person meant to insult/embarrass them publicly on a social networking site (usually Facebook).
Ashley: Did you see Jefferey's status update? He wrote "I hate when a stupid ex flirts with your best friend right in front of you".

Jennifer: Was that supposed to be a sub ?Screw that jerk!
by xEmiNae June 10, 2011
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(1) Abbreviation for submissive, in the context of Bondage, S&M, etc.

(2) Abbreviation for subwoofer; a type of loudspeaker that plays bass
Who's your new sub?

Damn, how many subs you got in that car? I heard it two blocks away.
by Pymp November 01, 2003
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To help out with monetary assistance
I'll sub you bra" "Don't worry if you don't have enough money I'll sub you son
by Bosco Baracus February 22, 2011
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