The baggy/large gap in both arms of a persons t-shirt caused by lack of mass to fill the garment. This is normally due to the lack of action in the gym or the fact the person is a complete weed!!
'look at the Pigeon Catchers on my man!! I don't think he's ever seen a gym!!'

or

Jules 'shit man, look at my arms in this t shirt. I really need to hit the gym!'

Moz 'that's terrible, your going to be catching some pigeons in that t-shirt today!'
by Julezswift September 17, 2010
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