In Reply to: It fits like a blister posted by Tessa O'Brien on October 31, 2008 at 08:28:
: Does anyone know where 'It fits like a blister' (i.e. perfectly) comes from?
Haven't heard it. "fits like a blister" only gets 1 Google hit and 0 for "fit like a blister." That said, the type of packaging where clear plastic is form-fitted to the object enclosed such as a pill or a toy is sometimes called a blister pack.