Often used in colloquial english to signify a dance party that does not require any specific quantity of people (Can be Solo). Rather, the term contends that the actor(s) is often belligerent - or about to be. This term originated from years of dance partying throughout various venues and homes throughout Toronto, which became a staple slang terminology used by the young professional class.
Popping a Regan - cuddling a girl and accidentally getting an erection
Guy one "we were cuddling all night man"
Guy two "and, did anything happen"
Guy one "nope, I popped a regan and scared her off"
Guy two "hard times bro"
Reaganomics shifted the tax burden from the wealthy to the middle class, real income plummeted for most Americans while CEO salaries and the national debt sored!