a person who likes to show off in a clever but annoying wayit seems like every time we go to the movies, sitting behind us is some wisenheimer making snide cracks
it seems like every time we go to the movies, sitting behind us is some wisenheimer making snide cracks
smart alecks(also smart alecs), smarties, smarty-pants, wiseacres, wiseasses, wise guys
know-alls(chiefly British), know-it-allswisecrackershotshots, show-offs
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