Being born with both a penis and a vagina.
(note) this is a real syndrome this is not to be a made fun of.
Def.1 I saw SallyJoe in the bathroom and dude that chick/dude has got one big mangina.
Def.2 My mangina fell out of my bikini 3 times at the beach.
Def.3 I'm sorry your son/daughter has mangina syndrome,