Wefty Lestern
A style of male masturbation in which the masturbator reaches his non-dominant hand under his thigh, between his legs, and with his thumb pointed towards his crotch, masturbates. Usually requires some form of squatting to accomplish.
Son: Daddy, the kids at school were talking about a wefty lestern. What's that?
Daddy: Here son, it'll be easier if I show you.
Daddy: Here son, it'll be easier if I show you.