Brunt is a power word, much like 'mokujinken' 'flick tab' and 'Pand'
Brunt originates from the name of the immortal, Mr. Brunt who sold his soul to the devil for eternal life and great power. Mr. Brunt became a science teacher and lives in a house that smells of coffee and lives with his best mate 'Barry' who he kills frequently.
Barry: I have a joke
Brunt: (sigh) Yer 'ded' Barry
Barry: *head explodes*