Plaster is just another word for Band-Aid. They are used to protect a small cuts and wounds from infection.
by Logansmorf April 19, 2004
by ttboy September 09, 2004
Noun. Arse (mainly UK and Australia, slang, vulgar). A rare example of triple rhyming slang: Plaster = Plaster of Paris = Aris; Aris = Aristotle = bottle; bottle = bottle and glass = arse.
by Lexeme the Wordsmith August 05, 2008