Someone who only gets invited to parties at the most inconvenient times of his/her life. Usually at these parties they will meet very important people, thus making it worse.
Inviter: Hey, wanna come to my graduation party?
Invitee: Ugh, I have a fever.
Inviter: Ashton Kutcher will be there.
Invitee: Damn, I'm such an inconvenient party go-er