To have sex while one's penis is flaccid. Often times one will end up "soft servin" some girl after a night of libations and devil dancin.
Guy: How'd you like that shit I served up to you last night, girl? Good, innit?

Girl: Man fuck you, you were soft servin me for like an hour and a half, and then you passed out on top me.
by snomanZP June 23, 2006
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