What that does is cuts it off to the blue-collar everyman with the American Dream kind of thing.

FORBES: Documentary Explores How Tech is Changing Wall Street

It ended with Djokovic yanking at his collar, stripping off his shirt, and unleashing a primal yell Fred Stolle meets Freddie Mercury.

WSJ: Jason Gay: Why Tennis Rules the Earth

Some of today's collar popping is meant to show off design details like piping or a contrasting fabric or color on or under a collar.

WSJ: The Return of the Popped Collar