Someone who soaks up information but never really understands it. Information is squeezed out at the end of term.
Most students these days are academic sponge's.
When you take a large watery shit on a sponge and you shove it up a girls vagina or a mans urethra
I gave Martha a treacle sponge last night
an extremely stupid person with a negative IQ who makes everyone feel retarded when they walk into a room. comes from the word mong and sponge since a mong is stupid and a sponge absorbs people intellectuality
"hey dude, that guy Agustin is such a spong"
A water pipe a.k.a. Bong specifically designed to smoke Crystal Meth.
Did you see uncle Shadys new Spong he was smoking with? He's gonna be tweaking for a tweek or two!
A spastic and a mong put together
"Hey Munro Galil your a proper fucking Spong"
A bong but the water is sperm.
Aidan and Ian worked all week to break out the spong for the boys this weekend.