Definitions by Ken Dodd's Dad's Dog's Dead

Insurance Wank

Masturbating prior to having penetrative sex in the hope that this will prevent the male from experiencing premature ejaculation.

Howay, man. I hope you're not gonna shoot your load too quickly.
Dinnae worry, pet. I had an insurance wank in the toilet at Pizza Hut just before we left. Now get a load of this...

Insurance Wank by Ken Dodd's Dad's Dog's Dead January 10, 2011