1 definition by Nuggenheim

Top Definition

A. - Immense pain you get when hit in the balls.

B. - A description for a really fit girl - i.e. she is giving you an erection, hence knobthrob.

Bloke 1: AARGH! Bloke 2: Ooh, that must be a real knobthrob!

Bloke 1: Damn, that chick is a knobthrob.

by Nuggenheim November 07, 2007