Random Act of Gayness 

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!"

Random Act of Gayness by KCRoyals15 November 19, 2010