The use in a sentence can be very helpful.<br><br>Buzzkill
(n. or v.trans.)<br>1. Buzzkill, anything that takes the edge off your fluff, a downer, something that ruins your good mood; a killjoy.<br>2. (verb) to selectively and deliberately bring down someone's mood by actions that are designed to irritate, annoy or downright upset a person.<br><br>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.