US Military slang term for a high ranking individual, usually senior enlisted. That do not hold any position of authority and therefore do very little if any work.
Now that we have a new LCPO Master Chief has 6 months as a gentleman before he gets out.
A person of the malepersuasion who lives by elevated norms and acts out the truest virtues in his day to day life.
A gentleman gets out of the bath to piss in the sink, and would never be caught wassing into a sponge then squeezing it into the sink let allowing slashing directly into the bath water.
When men guys acknowledge each other, without speaking or shaking hands, by a simple nod of the head.
"Did you know that guy back there?" "No, I just gave him a gentleman's nod because we made eye contact. It's just polite to acknowledge someone's existence."