Top Definition
When someone (usually a man), who is usually straight but has a moment when they act totally gay. Examples include grinding with no chicks around, any Justin Bieber impression, or other gay movements, statements, or voices.
Bob: "Ya and he decided to try out his Justin Beiber voice at the party"

Jill: "OMG! Thats another Random Act of Gayness!"
by KCRoyals15 November 16, 2010

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