When a male screams in a Boston accent while having a rod painfully slammed into his ass, usually occurs during the hazing ritual of some Frat's. The buttercup demonation is still unknown, however, when asked why it is called "buttercup" most victims flee away, screaming in terror.

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.