a mix between twat and nonce, or just generally a name you can call people who annoy you. generally used with msn, aim etc to describe flirting over it as the person may be flirting which is twattish but not a nonce
girl 1: my god dave was being a right twonce last night on aim!
girl 2:yeah what a tard
a device used to beat up chavs, the same as any old hammer except it's only used to beat up chavs.
chavhunter no 1: yeah man, i happy hammered that chav with my trusty chavhammer
chavhunter no 2: nice one man, they almost got me the other day, but then with my trusty four kilo chavhammer i took out 5 of them and the rest ran away
chavhunter no 1: sound