An adjective similar to fantastic but is used more to describe something which is related more towards vigilantes
"What?! That nutter from down the road has gone on a crazed killing spree against the druggies and gangsters next door? Vigilantastic!"
by Gralbo the Magnificent April 06, 2006
An exclamation of frustration, something that is shouted when a person is incredibly wound up about something
by Gralbo the Magnificent April 06, 2006