A.K.A Ryan Dunn. A man in his late 20's willing to jump in vats of shit and or fish for the amusement of other. Is also willing to insert small toys into certain parts of his body for fun.
The Random Hero can also be likened to a garden gnome (albeit a cute one)
see jackass, jackass the movie, CKY, Viva la Bam or Haggard.
by jules January 4, 2005
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"I'm about to get yanked the fuck off this bike."-RD, Jackass
by Lindsey February 14, 2004
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A man/woman who has sex with someone who's been having a dry spell
"Random hero, having sex with Katie when no one else will."
by Katie's roommate November 4, 2009
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A hero who fights anyone, anything, anytime, anyplace, anywhere and anyhow.
Like Mystery Science Theater 3000, A Random Hero has no control over when things start and end.

Usually battling a motley crew of baddies, Nothing is never normal.

Also, A Random Hero is the savior people dont count on being saved by.
Guy: You saved me...Who are you?
RH: Im Random Hero!
Guy:...I wanted Superman.
by JorReno November 14, 2010
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When a guy is hooking up with a girl and pops a random boner
Last night i pulled down Sean's pants while he was getting with Sarah. He had a boner. He is definatly a random hero.
by Sean April 21, 2005
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Ryan Dunn from jackass,jackass the movie,cky1 landspeed,cky2k,cky3,cky4 latest and greatest,and haggard..and hes in those steve-o movies but those were gay..
Did you see cky3 were bam tells random hero to jump front of a car...It was fucken crazy..
by Chris Nelson February 4, 2004
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lazy bitch that just eats pizza all the time, also occasionaly attempts stpid extreme stuff to no avail
by random hero adam July 13, 2003
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