Double-downer 

A sexual act involving more than one down syndrome person.

Dude, last night I was at this awesome party in a mental hospital and got these two chicks messed up on Tequilla. Slamming double-downer man! Those hoes couldn't work straight or speak straight the next day

Double-downer by dekor March 5, 2010

double downer 

when you take a crap so large it must be flushed twice in order to go down

"i gotta use your bathroom dude, Chipotle is making a comeback"

"ok, dont stink it up"

45 minutes later you hear the toilet flush, then a pause, then flush again.

"whew, that was intense"

"damn dude, if your gonna take a double downer...at least wash your hands"

double downer by kustus April 16, 2010

Double-Double-Downer 

A person who regularly eats two KFC Double-Down chicken sandwiches in a single sitting rather than eating just one.

Look at that fat bitch! I bet she's a double-double-downer!

Double-Double-Downer by suoivun April 21, 2010