haircut
when you pretend to be somewhere else but really you're just getting a sly wank because you're too lazy to do it in the bathroom
I said I was at the mall, but I was just doing a sly wank in my room.
I told my mom I was at the store, but I was actually doing a sly wank in the car.
I said I was at my friend’s house, but I was doing a sly wank in the park.