Top Definition
A logical fellatio is a logical fallacy employed to obtain oral sex.
Dr. Steve: Rebecca, I want a blowjob.
Rebecca: No. You're married.
Dr. Steve: So are you. That makes it OK.
Rebecca: Curses! You have trapped me with a logical fellatio. OK, whip it out.
by Jean Shepherd K2ORS SK December 24, 2009
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