The comforting action of pinching a shirt slightly above the belly button area, extending the arm and quickly releasing. This action is done subconsciously by many to provide a euphoric feeling of comfort and relief. The shirt-pull has gone mildly unnoticed for several years but spotting a shirt-pull has now become a national pastime as many have discovered the delight and joy of identifying

somebody mid-shirtpull.
*When correctly identifying a shirt-pull, it is crucial to "chalk-one-up", in order to correctly keep a mental tally.