Phrase. Means to drop soap as stated. Famous in prison movies when a man is taking a shower and drops his soap, leading him to gettin analy raped. Also mentioned in cartoon the Boondocks. There is a phrase related, "drop soap" which means to screw up and to recieve grave consenquences.
1. guy drop soap and his analy raped.
de RoarMan 20 mars 2006