Another euphemism for slut; a girl who fucks everyone, therefore sucking up everyone's cum like a sponge
Clueless Guy: You're not gonna believe this! I scored with Destiny last night!
Regular Guy: So did like 7 other guys. She's a total cum Sponge, dude.
Regular Guy: So did like 7 other guys. She's a total cum Sponge, dude.
by AlabamaNibber May 20, 2015

A person that tends to unknowingly adapt to be like a person or group of people that they talk to, mimicking their patterns, personality and appearence. A conformist.
Person 1: Is that Katie with the jocks? I thought she was one of the art geeks!
Person 2: Yeah, she switches to the social group of whoever she befriends, she's a total social sponge.
Person 2: Yeah, she switches to the social group of whoever she befriends, she's a total social sponge.
by The Doctor Sex. June 18, 2022

An awkward form of birth control that involves jamming a small, special sponge up your woman and leaving it there for several hours after sex.
by DrZedex February 20, 2014

A pelican
Now introducing the brand new BP Sponge! Soaking up most of the oil in the Gulf right at this very moment is the new and very outstanding powers of the BP Sponge!
by MrSebastian August 6, 2011

If you were to you tell your friends about a party, then don't show up and say it's because the stars didn't align so you're feeling tired, then you could expect your friends to were Sponging-out
by NotSpong January 28, 2010

by LuveitsGreat January 16, 2010

by TreacleJC April 4, 2019
