The term used to describe the act of stepping away from a female while performing intercourse, and adjusting the velcro strap of your gloves (the use of gloves is premeditated, for when you are planning to perform the Sean Casey. I mean, why else would you wear gloves?)
It is also the name of a dance where you adjust your gloves, step back and adjust your helmet. (Optional move: Adjusting your package for good measure)
This is derived from the baseball player, Sean Casey, who is known to adjust his gloves habitually between pitches.
I just smoked a J so I'm feeling kinda spacey, had to step away and crank dat Sean Casey.