popularized by the movie SUPERBAD!
this means getting a red blood aka period stain from dancing with somebody who has a freaking period and then sees the girl's (you just danced with) boyfriend about to attack you having the same stain and you call SAMEZIES!
yes... SUPERBAD was that awesome!
Dude, samezies, we got blood stains!
"same here"; expressed in a time of seemingly coincidental joy; a spicier way to say "same"
A: I just got herpes.