this term is used to describe a man with a big cock who unceremoniously fucks a pregnant women as hard as he possibly can with no regard for the unborn fetus which is why he is said to give the fetus a black eye.
"so johnathan you actually fucked that skanky pregnant chick rachel? your fucking sick. did you give the fetus a black eye?"
by AgentWar May 15, 2006
Get the give the fetus a black eyemug.