Top Definition
The process of masturbation that involves inserting ones own penis in ones own anus.

It is often used in the same way as the word 'wank', to say that something is bad.
"Music these days is absolute arsewank"
by Humphro March 25, 2004
a tedious exploit, waste of time or otherwise disappointing activity
going to that club was complete arse-wank
by dilbert scrunchie June 11, 2003
Lube your sexual partners Arse cheeks plus crack..while you lay back and have them wank of your erection using there cheeks without anus penetration.
Can't believe my luck when I got home to find my missus with Arse cheeks ready lubed for a ruddy good Arse wank
by Mickey and Rich December 28, 2015

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