wet blanket 

A negative person who tends to ruin other people's good times.

Don't let Joseph come on the Vegas trip, he's only going to be a wet blanket and take the fun out of everything.

wet blanket by FHOIA September 16, 2005

Wet Blanket 

descriptive noun

Describes a person who essentially ruins other people's fun, either because they openly disapprove of what other people are doing, or because their unpleasant attitude annoys or depresses everyone who would otherwise be enjoying themselves, if it weren't for that person acting like a 'wet blanket'.

The term is probably American in origin, first being used as slang in the mid 1800's. It was meant to compare a person to a wet blanket used to extinguish fires by smothering them, similar to how such a person would "extinguish" fun and excitement in social situations. Another, more modern interpretation of the term likens a dislikable or overbearing person to the aggravating, uncomfortable feeling of being covered by a blanket when it's wet.

"William was at the party last night and kept bumming everyone out by lecturing them about the 'dangers of alcohol and drugs'. Ha!"
"Yeah, that guy is such a wet blanket."

Wet Blanket by Charlie Apples June 8, 2015

wet blanket 

Someone who is over-emotional. One who dwells on their negativity.

"Ah man that stupid emo guy always whines about stuff, what a wet blanket!"

wet blanket by Tzeentch February 15, 2005

Wet Blanket 

Someone who is generally in a negative frame of mind, sulks and ruins other peoples' fun.

Why won't Kate just pull her finger out and do something for once? She is such a wet blanket!

Wet Blanket by The Wet One August 23, 2009

Wet blanket 

A person who seems determined not to have a good time and refuses to play or interact with others. Someone who generally has a negative attitude. In some cases people can become wet blankets because they cannot win the games the others are playing or continously lose, and as a result give up, becoming a wet blanket. It is important to note the continous offenses as a wet blanket can result in becoming a soggy biscuit.

1. Zane: "No, you guys always abuse me, I'm tired of playing, I quit!"
Us: "Don't be a wet blanket... You know what? You've done it to much, now you're just a soggy biscuit."

Wet blanket by tigress6793 November 5, 2010

wet blanket 

Someone or something that could have utility but chooses not to.

This is from the idea that a blanket could be a wanted item, but is no longer wanted when wet.

Mike is a really fun guy but ever since he started dating Sarah he became a wet blanket.

wet blanket by the Broadcaster February 19, 2009

wet blanket 

that one triplet on My Super Sweet Sixteen they keep referring to

I don't wanna be a wet blanket anymore; that's why I'm dressing like a slut.

wet blanket by Ashlarr January 1, 2006