Someone who has the ability to walk into a room and litteraly soak all of the fun out of it. Also known as a muzz.
"Nick was such a fun sponge, the moment he arrived the party died."
A person that is usually described as soaking up all the fun out of a room or situation. They are generally quite boring, lame and humourless people and don't allow those around them to have any fun.
Person 1: Hey is laura wagner coming to the party tonight??
Person 2: No I told tara not to invite her, she's your typical type of fun sponge. I mean I do want to have fun tonight don't you?
Somebody who soaks the fun out of everything.
Damn, Jeff is such a fun sponge. Hw won't even let me fuck his sister.
At first I thought you were cool but you ended up being a fun sponge.
a person who is not cool and does not like to have fun
Nick is not a fun sponge even tho people think he is a duche, he is the coolest person around.
Noun. A boring, humourless person.
Who was that boring prat you were with yesterday? He was a real fun sponge!
The character Freddie Mclair from the television show Skins.
Cook: And why didn't we invite Freddie?
JJ: Cause he's a Fun Sponge
Cook: You got it
A person or group of people, who take an activity so seriously and or literally, that they squeeze every last drop of joy out of it.
Can be appropriately applied to cyclists who spend 10K+ on their bikes, clearly don't enjoy what they're doing and live for looking down on those with 'lesser' equipment.
"Did you see those Joe Serious bellends shaking their heads and tutting?"
"yeah, fun sponges every last fuckin' one of 'em"