Top Definition
A high-power, high-capacity 9mm semi-automatic pistol.
The versions with magazines holding more than 10 rounds are now reserved for law enforcement use. They are very popular however with gang criminals, who compensate their sloppy marksmanship with quantitative firepower.
Watch out, these dudes get their wondernines out pretty quickly.
by Sepex November 14, 2005
5 Words related to wondernine

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