Using a driving glove to have a wank, especially when driving a Landrover on the M25.
Aah, this traffic jam is awful. I think I'll releive the boredom and have Dirty Jon...
To be such a rephrehensible person, that you think it is really funny to (whilst also getting a great amount of personal pleasure from) putting your fingers into a girls mouth, without asking for permission.
Did you see what that crazy ass motherfucker was doing last night? He was doing Dirty Forrests to all the girls!