(v.) To lose one's cool; become really pissed off. The idiom is in reference to a pressure cap
popping off, usually resulting in a nasty burn or imminent explosion. Thus, the person who caused
the pop off is about to get told or be destroyed, depending on the nature and severity of the
inflammatory incident.
James: Vernie, your little wigga child is uuuuugly.
Vernie:
No you di'int, heeeyll no, heyell no, heyell nah, heyell no, you said what, naaah, heyell no, heyell no, heeeyeeeell, no, etc.
{Vernie has popped off at James' comment}
-----------------------------------------
Boss: Dave, I know you're a family man, but I need you to come in Saturday... aaaaand Sunday, and stay late every night this week.
Dave: That's cool boss, I'm just gonna need your head in a fucking
drill press while I go to work on your nuts with some bolt cutters and run an arc torch down your spine after I've nailed your feet to the floor with
a remington power driver.
Boss: Okay Dave, no need to pop off now, I'll get Clarence to do it.
