2 definitions by FredAstair

Top Definition
Massive build up of sperm. Similar symptons to when a woman is experiencing PMS.
Rob hadn't had sex in soooo long he was suffering a severe case of MBS
by FredAstair July 03, 2010
What dogs do when they smell another dog's wiz on an object
Fido was busy checking his weemail, and leaving his own for others to see.
by FredAstair July 03, 2010

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