The Ruda Tuba - (rooda toobe a)
After fucking a chicks yatch hard (preferrably in the
doggy position), you proceed to flip her on her back, grab her by the ankles, bend her
knees to her chest, and make her queef. Repeat this maneuver by pumping her
legs as if you were playing a tuba. "Ruda" is short for Rudimentary.