semper I A play on the Marine Corps Semper Fidelis. Noun
Semper I, used to indicate selfishness, self-centered tendencies, a selfish indivudual or group; Adjective semper I, used to describe a person's actions as rugged individualist who disregards other opinions, property and ideas
As a Noun:
Semper I is his name. He was the semper I who walked all over her in the office to get the job

As an Adjective:
His was a semper I position, and he could not prevail.
As a semper I he volunteered simply for the glory
by Lloyd Winburn March 8, 2007
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a ex marine or a current marine who got arrested for doing drugs or having drugs
All those cases with Marines doing drugs are semper high.
by royal marine March 12, 2009
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The act of getting food only for oneself and ignoring the needs/wants of your friends.
Carner: (carrying food) Yum!
Jackson: Bring me any?
Carner: You never asked!
Jackson: Good, semper chowdelis Carner.
by terminallancecoollio December 7, 2011
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A good personal motto. Always being in trouble, constantly doing things that do not measure up to expectations, literal translation - "always in the shit".
Dave's D.I.Y. plumbing effort caused a flood in the bathroom which ruined an entire floor and brought down the ceilings in the lower floor.
"Dave, everything you do goes wrong. As they used to say in ancient Rome, "semper in excreta". You're always in the shit. This time, literally!"
by Stubabe December 18, 2009
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Semper High (Always High) is a motivational phrase adapted from the Marine Corps motto Semper Fi, created by the Weed For Warriors Project founder to express the lifestyle of a veteran suffering from service connected disabilities finding healing through cannabis.
I stay SEMPER HIGH just to balance out the lows.
by OG11 July 20, 2017
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A Marine Reservist.
Joe could not hack being a fulltime Marine, he is just a Semper Sometime.
by Rattakus March 10, 2010
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1)Always cool or in style
2)Colloquial for Marine Corps Aviaton
3)Always traveling through the air
1) That guy is Semper Fly!
2) I want to go Semper Fly and pilot Harriers!
3) I'm never driving to Wisconsin again! It is Semper Fly for me now.
by NewPhase April 8, 2010
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