A person or group of persons who have the uncanny ability to absorb all of the fun out of something, not unlike a sponge...

Someone who walks into a room and literally soaks up all the fun , as a sponge would to water . Also known as a buzz-kill or a party-pooper .

Someone who stops everyone else having fun

Someone who soaks up fun

A sponge that allows for fun.

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.

Fun Sponge is a person in a gaming community that is typically an admin that lets NOONE have any fun. They will no clip everywhere and watch your every single move! They generally take EVERY rule and hold tight to it! No one likes them...