1. (n) Leader of the Autobots, the protagonist of the Transformers universe. Originally transformed into a red cab-over semi-truck, his form has evolved through the various iterations of the Transformers universe (see Optimus Primal).

He is known for his strong leadership and courage and would easily sacrifice himself for the safety of others. His selfless personality is one of many traits that made him a great leader. Optimus Prime could be easily described as a "reluctant warrior", in that he only engages in war when absolutely necessary. It is possible this attitude prolonged the Autobot/Decepticon war.

He and Megatron (or his numerous iterations) have always shared a mutual respect for each other, and have opposed each other in nearly every depiction of the Transformers universe.

In the 1986 Transformers animated film, Optimus Prime was killed after a fierce battle with Megatron, but his character returned several times during the series.

Optimus Prime was the most liked character among young viewers of the original series, although his toy was not the highest selling (original release, excludes all others).
Optimus: "One shall stand.., One shall fall."

Megatron: "Why throw away your life so recklessly?"

Optimus Prime: That's a question you should ask yourself, Megatron.."
by phroot August 22, 2008
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an ex (normally a guy) who's all scruffy-assed when they're with you, then the second you break up; he decides to TRANSFORM into a smooth, goodlookin' gentleman...
Girl: OMG that guy over there, Jamie is like soo hot!
Jamie's ex: Jamie? Nah - he a scruff. *turns around* WHAT THE HELL?!
Girl: I know right? BUFF!
Jamie's ex: Stupid optimus fine.
by nojuststop December 8, 2013
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An immortal robot from outer space, he has come back to life a million fucking times and loves saying the word hour in a fucking sentence. He also can't stand 5 seconds without an introduction.
I am optimus prime, leader of the autobots. Will you assist us in our darkest hour?
by wEirD RanDo March 27, 2021
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A robot who in every show and every movie and EVERY FUCKING BIT OF MEDIA EVER has to die and come back to life in the literal next episode or season oh and don’t forget his most famous line: I AM

OPTIMUS PRIME!!! BECAUSE WE NEED TO KNOW THAT MORE THAN WE ALREADY DO “ Auto bots roll out the bullshit
And then Optimus prime fucking died!
by Wryy master DIO November 23, 2020
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leader of the Autobot Army in Transformers, and the sexiest robot alive.
by SexyLexie September 12, 2007
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Someone that indulges in the world of fantasy, is overweight and believes they are of mystical or sci-fiction power.

adj. a transformer based insult.
Hey optimus-fat, get of your space shuttle there aka the couch and take a shower this week!

did you see optimus fat, he had cat puke on his shirt all week and watched pokemon!
by lord nummers July 11, 2010
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