look up any word, like kappa:
 
1.
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 18, 2007
 
2.
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
 
3.
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

*Argument*
Asshole: You gay ass motherfucker, you can't do shit.
Me: I'm Batman
Class: OHHHHHHHHHH OHHHHH OHHHHHHHH!!!!!!!!!!!
*Wins Argument*
by A Microwave April 23, 2013
 
4.
a gameing move mostly used in fps games where you sneek behind someone and right before you kill them with a melee move you say im batman
guy1: man i was playing halo last night and tod got behind me and im batmand me

guy2: that happend to me last week on cod
by THE RHOG November 09, 2010