A committed nudie who hangs out at hotsprings, burning man, nude beaches, clothing optional clubs etc. who sometimes wears just a t-shirt while his junk is flopping around for all the world to appreciate.
verb: meaning to wear only a shirt and no pants or underwear, hence just a shirt and cock. However, can also be applied to girls. May have first been created at Burning Man.
I only saw his little pale butt as he was shirtcocking when he chased my cat Snickers out of the room.
1. the act of two men sword fighting with their dicks while only wearing a shirt. 2. the preferred way for Scientologist to boost their Thetan level.
"Lord Xenu froze the aliens and dropped them into the Hawaiian volcano's because of the excessive shirt cock sword fighting!"
"We all shit ourselves when we saw two Mormon Missionaries jump off their bikes, partially undress & start shirt cock sword fighting to see who gets to ring the next doorbell."
"John Travolta was recently seen shirt cock sword fighting Tom Cruise for a parking space at the Scientology Center in Hollywood."