Define Killed The Cow Meaning

Killed The Cow
Dropping some major ass. This type of fart is especially vile-smelling. As it seeps through the room its victims snap their heads back, as if slapped in the face.

Damn, man, shit. Whoever killed the cow had better get to the clinic, cause that aint right.
By Rivy
Kill The Cow
to finish off the last gallon of milk.

Don't kill the cow, I would like a little milk for my cereal.
By Athene
Killing A Cow With An Onion Ring
Doing something Unreasonable; trying for something that will never happen

Guy1: I'm gonna ask suzzie to the Prom
Guy2: Your just killing a cow with an onion ring dude. That will never happen.
By Carol-Jean
Crocodile Kill Cow
Violent sex in which partners bite and scratch eachother while barrel rolling and pinning each other down

I had violent crocodile kill cow with my gf last night
By Denny