Curiosity killed the cat..

I'm just randomly wondering... is there really that much difference between a hickey and a vacumn produced bruise?
Or does a hickey specifically need teeth marks?
Or can any haematomia produced by vacumn be called a hickey?

( but patriotism brought it back... )

( and EdWin killed it again, while the yaoi transmuted it into a homunculus and brought it back to life. )