A derogatory term for a white person's nipples, often used to trick people into thinking it is a pig's vagina, but actually it is just a code used between 2 childish yet amazing people.
People who don't know what pigina means are known as uneducated honkeys.
A pejina is an unfortunate condition where a male (or female?) has a penis and then a blossoming vagina where the head is supposed to be. This condition has only occured in a few people including an 18 year old in Valencia, CA.
Girl: ermahgerd boi put it in meh!!1!!1
Pejina Owner: Sorry, I can't put my pejina in there