The ultimate badass introduction. Say this upon meeting someone tough and they'll never mess with you.
Thug: What are you?!
Batman: I'm Batman
by Gary Trimarchi October 19, 2007
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A phrase so powerful that when used wisely, especially in court, will get you clean of any rape-and-brutal-murder charges for rest of your life.
Judge: "John J. Johnson, you were condemned to die by jury of your peers and sentenced by good-standing judge of this state. Do you have anything to say before you sentence is carried out?"

You: " I'm Batman."

Judge: "RAPE MY ASS AND CALL ME JUDY. Case dismissed!!"
by ICanSeeYouFap June 25, 2011
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This is probably the only sentence worth saying in life. You can use it to finish any sentence too, you know because I'm Batman...
Sheila: Going to the movies tonight?
Me: I'm Batman.

Jimbobalucazade: How are you today?
Me: I'm Batman

Asshole: You gay ass motherfucker, you can't do shit.
Me: I'm Batman
*Wins Argument*
by Qwsde April 23, 2013
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Overall its a justifiable excuse for when you do something completely amazing or really stupid. From passing an exam to accidental setting your house on fire due to the fact that you didn't catch that last flaming chainsaw.
Example 1

Guy 1: "Dude how did you score with mandy last night?"

Guy 2: "Because I'm Batman!!"

Example 2

Officer: "Sir do you know how fast you were going?"

Guy 3: "It doesn't matter how fast I was going because I'm Batman!!!"
by Hourglass Mage May 5, 2011
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When Batman fans try to rationalize that Batman would beat any other super hero because he is Batman and nothing more, when realistically any other super hero would strangle Batman with his own asshole.
"Batman would totally beat super man cause he would like totally have a back up plan, even with his powers."
obviously suffers from "I'm Batman syndrome"
by conman4618 November 1, 2014
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The explanation batman has for everything he does.
-Who the hell are you, giving orders like that?
by SpinnyPoggers July 17, 2009
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