shittyfucker
When a man performs a bowel movement into a plastic sandwich baggy, then inserts his penis into the bag and thrusts madly as if he were shaking a bottle of ketchup.
What the fuck!?! ahh, Phizikz stop being a shittyfucker!
ShittyFuck
When you are having sex and your girlfriend shits on your dick
Last night me and my hoe had a shittyfuck it sucked
shittyfuck
A really bad sex session. Also, an expression of anger or bad hindsight. See fuck.
"That was one hell of a shittyfuck!" or also "Shittyfuck! I left the stove on!"