Mannheim Steamroller

originating in america, a mannheim steamroller is a s-xual act that presents itself as having german roots. this act can be between a man and a woman or, in some cases, two men. the receiving partner first defecates while neglecting to wipe. after that, the man initiates -n-l s-x, using the fresh poo as lubrication. as the grand finale approaches, the man pulls out and “rolls” his member on the upper lip region, leaving a streak of poo and s-m-n, slightly resembling hitler’s mustache.
man: during the holiday season, i love to give my girlfriend the gift of mannheim steamroller.

friend: you mean that lame musical group?!?

man: h-ll no! i mean the mannheim steamroller – the single greatest s-xual act in the whole wide world!
similar to the stairway to heaven, but instead of rusty trombones up and down the staircase, it is a daisy-chain of people doing cleveland steamers on each other. extra points if you can work the staircase in sequence.
it was so intense last night, there was a mannheim steamroller up and down the staircase!
noun: when someone requests a second party to roll over on their stomach. the first party proceeds to defecate on the second party’s back. then the defecater takes a pizza dough roller and flattens the feces across the persons back
i got so drunk last night at this enema clinic, i woke up with sh-t smeared all over my back. the nurse told me i was mannheim steamrolled. i then waited and slapped her in public.
if, after -n-l s-x, then man finds feces on his p-n-s, he uses it to write on his partner’s back as revenge.
“stop rubbing your d-ck on my back”
touches back and feels feces
“awwwww, did you mannheim steamroller me?”