Blumwash
When your female partner is taking a dump on the toilet, you're performing oral sex on her, then she pinches off a heavy turd which hits the toilet water and splashes your face.
"Hey Phil, did you know that girls don't poop?"
"What the hell are you talking about, my girlfriend gave me a blumwash last night and it was fucking sexy."
"What the hell are you talking about, my girlfriend gave me a blumwash last night and it was fucking sexy."