Top definition
To have an erect penis
Jesus, I gotta sit down! My 'Root on' is poking out of these speedos.

Girl, you so fine you give me such a 'Root on'
by Antony Butnut March 19, 2004
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Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
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