When doing anal sex, the catcher rips a huge fart. This results in rumbling of the sausage. This can be done with heterosexual couples as well as homosexual couples.
n. A fart produced while sitting on a couch or chair that vibrates the couch, specifically in such a way that the other people on the couch or in the room feel it in their behinds.
I was sitting with my brother and sister and laid a couch-rumbler; my sister yelled, "That's gross!" and left.
When a women is giving fellatio a man with a wild untamed bush and he lets out a long rumbley steamy one leading the women to faint into the mans bush.