When one is not wearing a shirt, thus being naked on the top.

Every single gentleman at one time or another has had that one shirt that provides unrivaled luck with the ladies on a night out.

A sort of clothing that you feel is strongly required when heading in the direction of Las Vegas in the midst of a drug frenzy.

The t-shirt a guy gives a girl after kicking her out in the morning after a one night stand.

n. A stylish shirt, usually a T-Shirt, with elegantly silk-screened images of the majestic wolf/wolves printed large and in optimal view to the peers of the wearer. Wolf shirts generally possess an almost magnetic effect on women; who as if under a spell, cannot quench their insatiable lust for a man in a wolf shirt. Other side effects of the wolf shirt include but are not limited to, increased penis length, increased penis girth, ample sexual stamina, and greatly increased charming techniques.

Wolf shirt extract is also the main ingredient for the men's line of products, Axe.

Ugly terrible shirts that you wear around the house, possibly after taking a shower, or when you are about to go to bed. Although very hideous, they can be quite comfortable

essentially someone who looks beefy in a tshirt, fills the sleeves, but is non-the-less a fat guy in reality. Hundreds of shirt fillers go to your local gyms.