Best definition
Wank-Diet
A Wank-Diet is initiated by making a promise with oneself or Another person(s) to not participate in the act of

masturbating.Optional: allowances at up to 1 Ejaculation per week

Bob: Hey bro, wanna do some Dutch Rudder tonight?

Ted: No, I’m on a Wank-Diet.

Bob: Good luck, I’ll just do the stranger instead