matavaca
A vulgar term for an exceptionally large penis, hyperbolically described as being big enough to kill a cow. (In the Dominican Republic, cabañas are short-stay motels specifically used for sexual encounters).
Juana, I heard you went to the motel with Julian... how did it go? Oh girl, I had to run out of there... that guy has a matavaca so big that if he caught me, he would have gone right through me.
Automatically translated from Spanish