A mix of urine and semen
Sally asked politely for Tom to top off her hotdog with some cock mustard.
by WhooferTit April 23, 2005
Get the cock mustard mug.
When sperm dries and hardens on your penis.
Hey mark how do I get rid of mustard cock?
by Bdwjbdgwjsb December 28, 2017
Get the mustard cock mug.