Big Mac (gaelic: Mhor Martbhorgaire) was an Irish warrior, born in Munster, who valiantly fought alongside Brian Boru from 997-1014. While ironically small in stature, Big Mac's battlefield exploits were larger than life and ultimately helped propel Brian Boru into the High Kingship of Ireland. In one renowned Viking raid Mac broke his famed sword "Perseus" but Mac, ever resilient, fought on ultimately beating 47 Vikings to death with the use of a stolen Viking Helmet.
Verb: A social ritual performed by a large group of American males prior to entering a gym and/or weight room involving the removal of any and all sleeved garments from their bodies.
The ritual became increasingly prevalent in the early 21st century, however, anthropologists maintain that the ritual originated with the indigenous peoples of North America. The earliest de-sleeving can be traced to the Hamatsa of British Columbia which viewed the removal of sleeves as a portal to supernatural powers, and a way to show off their symbolic ink.
The gym rat decided it would be best to de-sleeve prior to performing barbell curls.