Green’s Dictionary of Slang

chunt n.

[chump n. (3) + cunt n. (4)]

1. (Irish) the vagina.

[UK]‘Walter’ My Secret Life VIII 1648: ‘Ahaa—suer me chunt’s as hot as hell—fuck—fuck hard—piss out your boiling spunk into my bloody chunt—sure that will cool my chunt’.

2. (US campus) an unpleasant, incompetent person.

[US]Eble Campus Sl. Apr. 2: chunt – someone who is incompetent and obnoxious. Possibly from chump + cunt.