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stands for "good night nigga." usually in a text.
bruh im baked imma sleep out now

'k gnn
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by sun-uv-a-bee-atch December 03, 2017
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An acronym for "got new number" to be used in games concerning numbers.
Guy 1: Let's start again.

Girl: Gnn.

Guy 2: Gnn~
by Typo-chan June 22, 2013
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