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1.
1. the act of vomiting into an open anus which has teeth around the outside.

2. cutting a person's genitals off and keeping them in a shell for later ingestion.

3. cutting off someone's genital warts and sucking the juices out.
1. *blurgh* *munch, munch, munch, mmmmm* thats some good conching.

2. alfred didnt mind me bringing home my boss' genitals for dinner last night.

3. don't look at me in that strange way, i'm doing you a favour.
by bert and ernie July 25, 2006
 
2.
-verb-
While sharing a cigarette, bowl, etc, talking instead of smoking and passing.

The act of talking while holding a shared cigarette, bowl, etc, thus delaying others enjoyment and uslessly burning the smoked object.

CONCHER
-noun-

One who feels the need to talk while holding smoked object in a cyph.

Derived from the novel LORD OF THE FLIES wherein a conch shell is used to determine who is allowed to speak. As we live in a modern society, we do not need to hold objects in order to be heard. Therefore, conching is unnecessary and also burns away good smoke.
"Hey Joe! Stop conching and pass that!"

"This thing's kicked! Dammit Chris, you conched for so long that this thing's more beat than Tina Turner!"

"I like Dave a lot, but I would never smoke with him. He's a big concher. Once he gets his turn in the cyph, he'll talk until that shit's gone!"
by Donny Pro-Am March 27, 2008
 
3.
When a person really desires something, e.g. food, drink, sleep, sex etc.

Not to be confused with kotching
Jack: I'm conching for some food
Tom: shall we go to KFC then?
Richard: yeah come on I'm conching too

Daniel: I'm conching for some pussy, it's been like 6 months now!
by Dale W. March 28, 2008