cunt onion 

a girl with an extremely nasty smelling vagina

i stuck my fingers in that cunt onion

cunt onion by punkpirate August 29, 2005

cunt and onion

A term that can be used to replace any profanity in a cheerful yet meaningful manner, it is mostly appropriate when a profanity must be shouted. It is also often used when everything is going against you but you simply don't give a shit and is in this case expressed in the song; 'cunt and onion, cunt and onion, tra la la la la'

playing FIFA and someone scores against you:

'oh cunt and onion!'

or

Your life's going to shit, the wife has left and you lost your job

'cunt and onion, cunt and onion, tra la la la la'

cunt and onion by cuntandonionfc November 20, 2013

CUNTONIAN

Adj., resembling a cunt (in the negative sense of the word)

Martha is such a bitch; she has cuntonian tendencies.

CUNTONIAN by Brett R. August 16, 2006

Cuntnion 

When a vag smells so bad it makes you cry like when you're cutting onions

You know Katie? Man she got a cuntnion.

Cuntnion by Notbeanz December 13, 2016

Cuntonian

A cuntonian is a really bitter evertonian who has liverpool football club living rent free in their tiny brains. They live life from day to day wishing horrible thoughts about the red shite. Sadist cunt and evertonian combined to make cuntonian

A really bitter Everton fan, want a Cuntonian

Cuntonian by Sheepwelshbumbag May 13, 2019