eternal pledge

1. Any brother in a fraternity who is so socially awkward, strange, or shameful that the fraternity unofficially regards them as being not a part of the house.

2. A name one gets called when doing something embarrassing within the Greek system.

Tom- "Where's Sean?"
Kyle- "He went to the theater to see Twilight."
Tom- "With his girlfriend?"
Kyle- "He's single."
Tom- " ...eternal pledge."