Cranksturbate
When a man has to masturbate a little bit to get himself hard so he can have sex with a woman. He has to crank start it like an old Model T Ford.
Friend 1: "Man, you so old you probably have to cranksturbate."
Friend 2: "Nah homie, my shit works good. Ask yo mom."
Friend 2: "Nah homie, my shit works good. Ask yo mom."