jackface
A fancy way to call someone a total loser when you're too lazy to come up with anything better.
"You're such a jackface, I could eat you for breakfast.", said to a kid who spilled his cereal on the floor.
"Jackface? That's the best you got?", said by a kid who got called a jackface for no reason.
"I'm not a jackface, I'm a future president.", said by a kid who failed math.
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