Wankstabate
Just like wank and masturbate. Just the two words added together. Commonly used by chavs or people who cant say masturbater and aren't allowed to say wank.
Mum: What are you doing in the bathroom son?
Son: Err, I'm wankstabateing...
Son: Err, I'm wankstabateing...
wankstabating
the art of a wanksta masterbating
"Duane was caught wankstabating with the duke."