The pole axe was a weapon used in medeival England. It was literally an axe atop a long pole. Originally the term meant to be killed with such a weapon; it later came to mean being violently killed with any such weapon or instrument.
When the running back was hit by the middle linebacker, he went down like he'd been pole axed.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."