A person who brings hype and enthusiasm to a party, who helps break the ice so partygoers have a good time.
My university's student newspaper always had wanted ads for 'party pumpers' to work at bar/bat mitzvahs getting the kids dancing and enjoying themselves.
To do shitty stuff that kills everyones buzz at a social gathering is commonly referred to as 'party pooping'. 'Party toilet paper' is any act whereby one who has previously pooped on the party does something totally rad to undo said party poopery and bring everyone's spirits back up to awesomeness levels never anticipated.
me: Did you see that douchebag who pissed in the laundry hamper earlier? What a party pooper.
you: Ya, that was not cool, but then he totally made up for it when he brought that extra keg later! Party toilet paper!
(okay, maybe this term is pretty stupid)
1. Select a player (real or fantasy) during a sports draft to spite or anger one or more of your opponents because they had intended to select him/her.
2. Select a player (real or fantasy) during a sport draft to put one or more of your opponents at a strategic disadvantage.
1. Billy hate drafted Chad OchoCinco because he knew Sam had wanted him since he is from Cincinnati. Billy already had plenty of players to fill that position but wanted to make sure Sam didn't get him.
2. Billy hate drafted Peyton Manning because he was the only good quarterback left and he knew Sam had been planning on drafting him.