The act of flashing your teeth to show off your grillz. A term used by many
popular southern rappers, such as Mike Jones, Paul
Wall, and Bun B. Often done while ridin in your
car.
Paul
Wall from "They
Don't Know":
"What you know about poppin trunk?"
Bun B from "They Don't Know":
"Pop my trunk and show my fangs"
Paul
Wall from "Big Ballin":
"I'm on that 59 South, ridin with my trunk popped"
Mike Jones from "Cuttin'":
"Like Lil Jon I keep it crunk, got beef with me I'ma pop the trunk"