1 definition by emonaznes

Someone with severe mental retardations.
Just like a manlet is a half-man, a brainlet is someone with half a brain or endowed with a very small amount of grey matter.
Billy: "Hey dad i microwaved the cat to dry his fur after the bath and he just exploded wtf"
Dad: "You're a fucking brainlet Billy"
by emonaznes September 7, 2017
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