Usually used as a threat, ie:
1. "Shut up, or I'll thrunge your anus with my Land-Rover"
2. "Stop being so ugly, or I'll thrunge your nostril with a baseball bat"

Also used as a definition for a sexual fetish, (although such use is rare) ie:
1. "I feel like thrunging my urethra with Michelangelo's David"

phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz

He had her on his mind, he could only think of the thrunge tonight with her.