sack dance
n.— «I thought Mark Gastineau’s “sack dance” broght the rule for over-celebration. As for the “end-zone celebration” penalty…a Washington-Dallas game at Irving triggered the rule.» —“Re: Unnecessary Celebration” by Dennis Richards Montgomery Usenet: rec.sport.football.pro Dec. 20, 1990. (source: Double-Tongued Dictionary)
Further reading
It’s hard to imagine now, but there was a time when people disagreed over the best word to use when answering the phone. Alexander Graham Bell suggested answering with ahoy! but Thomas Edison was partial to hello! A fascinating new book about...