Top Definition
this is usually a dress code. it means to wear one colour of the rainbow and one colour only.

it could also mean to wear one thing for each colour of the rainbow.
Sally: you goin' to the party? dress code original rainbow!!
Amy: yeah, i'm wearing purple everything :D
Sally: Oh. i'm wearing everything different colours. :)

by PartyPeece. June 18, 2011
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