\ ˈtē-ˌshərt ˈbȯis\ n. A member of a volunteer or paid-call fire department who never shows up to training. This member also never responds to calls, even though they may be less than a mile from the call. These members are just in it for the fire department t-shirt.
Well it's Thursday and none of the t-shirt boys have showed up for training.
There was a call one block away from one of the t-shirt boys house and he didn't even respond when Active 911 showed him as being home.
The wet mark that appears on your t shirt when holding the side of a cold beer accidentally against it while chatting to mates, also often occurs while watching sport
Jim: Mate you've been holding ure beer against ure shirt & it's all wet
Bob: Ah, yet another t-shirt beer mat!
The concept made popular by Mike "The Situation", from the popular reality show, "The Jersey Shore".
The concept, as defined by The Situation: "We have an abundance of wife beaters ... we wear before we go out. Then it's T-shirt time. Right before we go out we take off the tank and then we put on our fresh shirt."
When getting oral pleasure from your partner you pull your t-shirt over their head in a clandestine manner.
The key is to do just before you are about to blow chum.
Once the t-shirt is in place, let the flood gates loose and watch the silhouette of your partner's head sling shotback and forth as they try to evade that which is eminent from slamming the back of their throat.
My ex was on her knees giving me a blowjob when I pulled my t-shirt over her head, just before I blew my goo.
Once I did there was no escape as she tried to pull away from my sloppy splash, I just relaxed and watch the T-Shirt Bungie show.