Ex. 1 - A crotch face is a person born with a strange physical retardation. In this case, Their Genitals are in place of their face, and face in place of genitals.
These are the only retards you are allowed to laugh at, but they are extremely rare, only one is born every year and they do not like to come out of their homes.
Ex. 2 - A general insult for a person being a dick. Can also be used when others are using genital size as insult.
See also Dickhead,Arse Face
Gayass: Hey Your Dick Is So small you need a microscope.
Other Guy: At Least Im Not A Crotch face like you
some one with a head in place of their genitals.
Kevin: hey have you seen the big bad wolf music video?
Drew: no, why?
Kevin: The people in the video all have crotch faces!
Drew: wtf is a crotch face?
Kevin: gotta watch the video bro
a saying that can be used to discribe someone you may not like...
you are a nasty "crotch face"