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a combination of anus face and brainus that is basically someone who pretends to be mentally retarded so that people give them sympathy when they act like a cuntwad in front of all their Dead-inside Friends.
"Hey, You Hear About Tom Yesterday?"
"Yeah. Heard He Was Being A Real Brainusface"
"A What Now?"
"A brainusface you dildowank ."
by euanbomber July 22, 2018
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