When a person from the
BAY AREA finds a situation, person, or
something outrageously
funny, it CAN be described by this term.
At a
party, a bunch of
people are chattering about until they mention a really funny person they all know. One of them then says, "You know Steven? That
guy's hellarious!!"
"Man when that girl didn't know what OJ meant, that was hellarious!!"