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To say someone is being stupid or being (in their opinion) wrong, as boys (middle school and under) usually act. Also used when someone is acting full of themselves.
Alana: Your such a boi head
Neena: No, that's you.

Alana: Omg, that's exactly what a boi head would say
by Netflix_and_books_and_chill March 12, 2020
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2
Something you call someone when they do or say something stupid. Commonly used in class, work, or over the internet.
(Person one Incorrectly answers a question) “boihead.”
by Strafey December 02, 2017
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