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When it gets to be summer time and people get sun fever thinking they can wear whatever they want...Fun in the sun mostly refers to bigger people who walk around with clothes that are too small and they think because its hot, its ok.

Sun can be an interchangable word like fun in the club etc
by RMCG July 24, 2008
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2
To awkwardly handle a situation like a dweeb.
Man, Olivia really fun in the sunned when she was talking to her friend's boyfriend.
by clonesweater October 14, 2016
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