An instance where someone does something unusually
stupid, forgetful or otherwise unwise and embarrassing. While potentially devastating for the individual engaging in the incident, such instances are the fodder of legends, folktales and
safety manuals. May or
may not involve a certain fast food chain.
HAHAHA!
Kevin just farted while interviewing Bono live on television! What a McMoment!
Remember that McMoment when
Kevin fell out of the moving
car? He lost his earlobe, but man it was hilarious!