The members of the band seem to enjoy coming up with different definitions for the term, from a shoe lover to a person with a smelly butt, so there may be no official definition, at least as far as they're concerned.
Receiving oral from behind while standing. First girl kneels behind guy and buries her nose in his copper penny. Then she pulls his equipment down and back to her mouth and starts smoking his hog in resemblance of smoking a hooka.
So that's what the band Hoobastank's name means...receiving oral from behind while standing.