(noun) An event, occurrence, situation, and/or more oftentimes a person(s) that bring about unwanted and undesirable times. A buzzkill is to be avoided at all costs.
The evening was going along great. Everyone was having a good time until Betsy's obnoxious ass showed up. Betsy is such a buzzkill, her negative energy just brought everyone down and it wasn't too very long after she arrived, uninvited, that the peaceful and jovial get together soon dispersed.
1. n.) The form of party assault generally practiced by the Buzzsaw Nation and known to raise the atmosphere of an event to epic levels, usually including sessions of Buzzlegums, the appearance of pink pancakes and the occasional occurence of a mitch off.
2. n.) The Legendary technique of increasing celebration intensity at events normally attended by urban dictionary rockstars such as pooh, ghetto definiton #75, rerun def#3 and Walker def #4
USC never saw the Husky Buzzkrieg hurtling at them until it was too late.
Buzzkill (n. or v.trans.)
1. Buzzkill, anything that takes the edge off your fluff, a downer, something that ruins your good mood; a killjoy.
2. (verb) to selectively and deliberately bring down someone's mood by actions that are designed to irritate, annoy or downright upset a person.
Lois had a particular skill as a mother. When any of her children came home, faces beaming, eyes aglow with a report of good behavior at school, having caught a large fish or having really righteously beaten up the nerdy kid next door, she'd have just the right buzzkill to bring them back to reality. Later in life, she wondered why the kids never called, but only infrequently--she was not of an introspective nature, by and large.