(N) The coolest last name in the world, commonly referred to people with large penis' and/or huge boobs. typically of Greek descent, this last name is shared with famous Opera singer Maria Callas, and Clay sculptor Peter Callas.
(V) To Callas means to do something crazy and exciting in bed.
(N) I am so happy to have a big dick (or large boobs). Did I mention I am a Callas?
(V) I heard that bitch can Callas like you have no idea.