The slang and the use of slang by a certain person or group of persons. Can be used in a posative or negative manner depending on the assessement of it quality in wit, humour, and mannerism. Scottish in orgin.
by Jack McFarlane April 27, 2007
Your school dean comes up to you and your mates and starts to tell you off. So one of you moves behind him and starts to urinate on the back of his leg. The noise made is like a patter, hence the name.
by Justin 2567 August 03, 2006