When you choose to masturbate in the bath.
Be careful not to ruin your bath with wank water.
A telepathic wank using your mind. BUT YOU AINT THINKING ABOUT THE HOMIES
luke was thinking of Sam's toes so much that he needed to have a mind wank. But he is a homie...
An Evening of Masturbation on one's birthday to celebrate the conceivement of one's self.
Mate: yo man you wanna go out tonight for your birthday?
You: sorry man I'm having a birthday wank tonight