Top Gun

From the Tom Cruise movie of fame, "Top Gun" can be used as a passive-aggressive derogatory term for someone who thinks they're cool, tough, or otherwise competent. It is to be used along the same sarcastic lines as "boss," "chief," "ace," "big guy," "player," etc., except Top Gun is most effective when dealing with someone either in a fast car, or wearing Ray-Ban sunglasses.