When a male and female get together for a sexual meeting and the male ejaculates into a cup after beeing blowed and then proceeds to take a piss into the cup making a liquid that looks like fucked up mustard. He then poors the new liquid onto his female partner and rubs it all over her body
"Oh shit, I'm about to cum, quick give me a cup to mix up some nice deli mustard for our sandwiches"
by Steve July 6, 2004