Big Iron: A firearm, specifically a revolver. Due to the thick metal used in creating old-style revolvers such as the Colt Peacemaker or the newer Ruger Blackhawk/Redhawk, and partially due to the weight of the weapon, they earned the nickname "Big Iron." This phrase became largely popular after Marty Robbins' widly successful gunfighting ballad called "Big Iron."
"No lone dared to ask his business no one dared to make the slip, the stranger there amoung them had a big iron on his hip"
by wakyjdogboy April 12, 2017
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A colloquism from the American Frontier days, referring to a handgun with a long barrel, as mentioned in the Marty Robbins song, featured in the video game Fallout: New Vegas. It was the style of the time for many to carry shorter barreled guns, often with the front sight filed down or completely off, to aid in a faster draw. So, anyone carrying a long barreled gun was assumed to be confident enough in their ability to handle the gun they would trade the speed of a shorter barrel for accuracy of a longer one.
Watch out for the stranger who just rolled into town, he carries a big iron on his hip.
by Jen45 December 7, 2018
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A popular song by Marty Robbins about an Arizona Ranger that goes to the town of Agua Fria to kill a young outlaw nicknamed "Texas Red" that is terrorizing the town. Spoiler: he succeeds.

The song has been parodied many times on Youtube, with humorous edits that may or may not change the story of the song.

Some of the most popular ones include:

-Big Iron, but Texas Red wins

-Big Iron, but the ranger is after everyone

-Big Iron, but everyone is dead
To the town of Agua Fria rode a stranger one fine day
Hardly spoke to folks around him, didn't have too much to say
No one dared to ask his business, no one dared to make a slip

The stranger there among them had a big iron on his hip

Big iron on his hip
by Someone who kinda exists June 6, 2021
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A creepy high school vice principal who likes to sniff poon and torture band kids
My names Big Iron and I can smell ya out!
by BIG_IRON November 13, 2014
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A large-caliber handgun (Preferably a revolver), that is mentioned in the song Big Iron.
The specific Big Iron was used by The Arizona Ranger to take down Texas Red.

This also is referred to in the hit game Fallout: New Vegas, when you as Courier Six shoot Mister House with a Big Iron, ending the game.
"He's here to do some business with the Big Iron on his hip"
by ThenSoldiern January 12, 2021
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If theres a school shooting happening and pumped up kicks turns to big iron the school shooter is fucked
Kids: If big iron starts playing we are saved
by DECEAR CLEAR DOWN EGG March 14, 2020
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a firearm, more specifically a pistol.
A stranger walked in the room with a big iron on his hip.
by hotterpotato April 16, 2011
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