Top Definition
A scruffy yellow Poncho like jacket worn often in cold wet weather, usually worn by 'chavs', poor people and mostly tramps, not attractive and come in a wide range of incandescent colours.

A Louis Nylon is a bright Nylon worn by a poor child. Often selling things for money.
Look at that "Louis Nylon" over there, I bet he smells really bad.
by DavetheStake October 21, 2013

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