Sex. Popularized by the song of the same name by T.Rex. Specifically refers to penetrating deeply enough to hit the cervix.
by T-Rex-a-Lot September 01, 2007
by Phillip H. Donahue December 06, 2003
by Evasion Romantica December 04, 2006
"...users might be reduced to rooster brand or...to a bunk yen, meaning to hang around the den without possessing the wherewithal to bang the gong...(i.e. bang a gong)"
by imposthume December 27, 2015
by Karloman October 10, 2004