A mid-level commander/officer rank in many modern military forces. It can also be used to refer to a second-in-command in military or political hierarchy.
That guy is a lieutenant in the Army.
No, he is the Lieutenant Governor.
by Nicolai June 13, 2004
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A rank of person in the military that frequently gets lost and is usually very confused.
Hey lieutenant, I can help you find your way back if you need assistance.
by carlthejokster January 21, 2018
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a low level U.S. military officer in the Air Force, Army and Marines. Officer ranks (which operate separately from enlisted ranks) are categorized as O-(1-10) A Lieutenant is an O-1 or O-2. Only in the navy is this different where a Lt. is an O-2 or O-3. In Contrast a General or Admiral is an O-10.
The term can also be applied in civilian terms to refer to a second in command. As in a lieutenant governor.
I don't care... just ask some lieutenant to do it.

The governor is on vacation, so the Lt. Governor is running things for a few days...
by EB835120 July 22, 2008
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A true American hero, a man who had a destiny. Forrest Gump's lieutenant in Vietnam who gets his legs amputated. Later, he helps Forrest get rich with Bubba Gump shrimp.
by TheBassMan69 July 14, 2008
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The person you temporarily become after thanking Captain Obvious.
*People are looking at a burning building*

Person 1: Whoa, guys, look! It's on fire!
Person 2: Thank you, Captain Obvious!
Person 1: You're welcome, Lieutenant Sarcasm.
by smileyface3 January 15, 2010
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n. A man who wears really short shorts (plum smugglers) on a nearly constant basis. (see Girf)
by William Earl Dodd III March 25, 2005
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A person in the army, or marines who thinks they know everything. After about 5 years of looking like a dumbass they learn some shit and get 1st lieutenant.
Hey 2nd lieutenant the captain told you to report to the pool on the 5th floor of the parking lot. Of course it has 5 floors not 3.
by Unkown15432 October 14, 2015
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