buzzkill

something that spoils or ruins an otherwise enjoyable event, esp. when in relation to ruining a drunken or drug-induced high.
we were having a great time at the party until jim puked all over the floor. that was a major buzzkill.

i was jerking off and then my dad walked in, god what a buzzkill.
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.
when someone or something ruins a special moment which may or may not be drug induced.

see also buzzkill
a)

the protagonist experienced the ultimate buzz kill in “the crying game” when dil removed -his- pants.

“dude, i’m so high right now”
“yeah, but we just smoked the last of the weed and your girlfriend took our rent money to fix the dent you left in her car last week”
“dude, could you be any -more- of a buzz kill right now ?”

b)

urban dictionary’s inability to recognize identical terms with minor spelling variations is such a buzz kill.
when you are high, drunk,or both and want to do something fun and some one you are with starts complaining about everything.
person 1: man we should egg that house
person 2: no man we could get caught, i wanna go home
person 1: will you stop being a f-cking buzzkill
as the other definitions have said.

can also be someone or something that spoils the mood for just about anything.
we were watching a great movie, with an enjoyable plot, good acting and top notch special effects. then bob starts nitpicking something that once we thought about it, it totally ruined the movie for us. that guy is such buzzkill.

so, i’m talking with a few diffrent people on msn messenger, alternating between them. we’ve all got interesting, intelligent conversations going. anyway, suddenly one of them chews me out because he feels i’m not giving him enough attention. he totally killed my mood. what a buzzkill.
something that happens that takes a person out of a good mood and into a bad one like sadness or anger.
we where having a good time at the barbecue until tonisha told everyone how she had three abortions. what a major buzzkill. everyone went home soon afterward.
wen a rather enjoyable moment is rudely and abuptly interrupted.
when a pla or idea is “sh-t on” or “shot down.”
it was a real buzzkill when she spit and it got in the other girls eye then my f-cking mom tryed to join.