crafty wank 

The act of masterbating in secret without anybody noticing. Usually done behind a bush or whilst peering through a gap in the blinds, looking directly at the subject of your filthy attention. A real art when perfected.

I saw a cracking looking girl on the sidewalk outside my house yesterday and couldn't resist knocking off a crafty wank from my bedroom as she stood there!

crafty wank by Nigel Fleming July 13, 2006

Crafty wank 

The action of masturbating in a public place, without being spotted.

He would often have a crafty wank under the desk during his history lesson. The other pupils noticed, but the teacher never did.

Crafty wank by DarrenG July 20, 2024