pop a lock 

To take the virginity of a girl who no one else can get "it" from.

You know Sherry that sings in the choir at church?

Yeah.

I popped that lock, boy.

pop a lock by Steve and James November 18, 2004

pop-a-lockin' 

1 - generally expressing a vibe of awesomeness and success via one's manner, demeanor or mode of existence.

2 - used sarcastically to mean something sucks, fails, is weird, isn't cool or doesn't actually work

1: I beat you at PacMan because I'm pop-a-lockin'

2: Jack Man I hate riding the bus. It's never on time
Jill It's our pop-a-lockin' ride!

pop-a-lockin' by nlskdangslksadg January 18, 2008