In addition to the more well-known definitions, cunt actually traces its roots back to the Victorian era insane asylums in the UK where CUNT was an anacronism for a woman who doesn't understand established rule of thought by society:
If you think about the usage today, it's mostly appropriate. Almost exlusively applied to women (more freely used towards men as well in the UK and OZ) under extraordinary circumstances when a man can't understand or thinks a woman is stupid, therefore, a cunt.
She was going on and on about I don't know what... what a cunt!
For men it's blowing their wad, usually multiple times in a short amount of time.
Fow women it's getting dripping wet or, in the very rare circumstances, when a woman has a spirting orgasm.
I gushed all over her face and tits.
He got me so hot I gushed all over myself.
In normal circles, dweeb is considered a dork or nerd. For those of use growing up in the 80's, dweeb is the area between the vagina and anus on a woman, or ball-sack and anus on a man
Otherwise known as a chin-rest.
Her dweeb was as hairy as my chin!