When you get the four (or six) plastic can rings (normally with an alcoholic beverage, i.e. Beer) and you and your friends put a hand in each ring and pull until one person is left with the plastic around their wrist. Thus making them a twat.
"Oh, lets play Twat Band!"
*Everyone puts their hand in and pulls*
(to the person left with the plastic on their wrist) "Twat!"
*Everyone puts their hand in and pulls*
(to the person left with the plastic on their wrist) "Twat!"
by CrazyRetard March 19, 2010