To be ignorant and self absorbed as well as absorbing loads of shit. Making you full of shit.
"You're an ignorant shit sponge."

"Your friend acts like an ignorant shit sponge"
by CheeryCandy May 17, 2017
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what you would do after a curry or a big mac.
"i just eat a big mac, and its gone right through me.
i could shit through a sponge i tell you
by nut September 15, 2004
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