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"