T-shirt time is "The shirt before the shirt". This is done by guidos, juiceheads, and gorillas from the jersey shore before hitting up DA club. They do this so their "going out shit" is crisp and rediclusly tight when you get to DA club. Is good for showing off abbs.

T-Shirt time: When one takes there "freshest" t-shirt and applys to oneself before going out for a night of smoshing.