Origin: American revolutionary war.
After: Jean-Baptiste Donatien de Vimeur,
comte de Rochambeau (1725-1807).
As a lieutenant general, comte de Rochambeau commanded the French expeditionary army sent to help the American Revolution during 1780 to 1782. His skillful leadership and professional wisdom were vital to the American-French allied victory at Yorktown in September 1781.
Rochambeau was so skilled at kicking the British's balls in battle, that his victories were called "Rochambeau's".
His name, in corrupted spelling, became slang for any number of contests or confrontation resolved by competitive nut-kicking.
Hey! I'll roshambo (Rochambeau) you for the last beer!
( etiquette usually dictates that the challenged gets first kick .. unless he's an idiot).
by Dave the Riss January 01, 2006
A simple game, which can be enjoyed by children of all ages. Despite protests by feminist groups, this game has yet to accept women players.

Step 1 - select who plays first. This is critical to the success of the game, as first-mover advantage is key. Any method which both players agree on can be used, eg coin toss.

Step 2. Player one kicks player two as hard as possible in the nuts.

Step 3. Player two, if able, kicks player one as hard as possible in the nuts.

Game ends.
"Do you fancy a game of Ro Sham Bo this evening? Giles is coming round and he is quite proficient."
by Butchos December 27, 2008
paper-rock-scissors A tie breaking game or a game used to see who goes first.
I roshambo'd his ass for his williams!
by Jessse April 16, 2008
A contest in which two guys give each other repeated kicks to their nuts.
It is the Challenge of all challenges, and the Supreme test of wills. Real men only need apply.

Rock paper scissors is first held to see who kicks first.

The first competitor to receive the THIRD kick may then call out for the Russian Gas Pedal. However, if his opponent can make it past 60 seconds of intense pain, then he may call for it right back!

Also note exceptions: Professional Roshambo, Third party Roshambo and Standard Roshambo
Tim and me both liked Jenny and really wanted to impress her. Before she came over we silently agreed to place a bet for $100 on a game of Roshambo just to impress her.

After the third kick I called out for The Russian Gas pedal and afetr 45 seconds Tim gave up, whimpering like a little girl. I won the Roshambo contest and brought Jenny out later that night. She was amazed at my tolerance for pain!
by Lex Durden July 24, 2009
1. A very common name for the game Rock-Paper-Scissors (see Rochambeau). Also written Row-Sham-Bo.

2. A game created by the TV series South Park where two people hit each other in the crotch until one either falls down in pain or simply gives up.
1. Hey, I'll roshambo ya for the last piece of pizza!

2. Ha! You fell down, I get it!
by Stephen Olsen March 08, 2006
when two males kick each other in the nuts usually over something the used loser is the one who gives up or says I quit or screen
what you meant played roshambo and underwear over who's going to play Grand Theft Auto 5 first
by asskickassss December 29, 2013
The game of rock paper and scissors but was given this cool name on Castle because they are amazing.
Beckett: "What? No ro sham bo ?

Castle: "Well, you would be at an unfair advantage, I'm pretty goo-"
Beckett: "Ugh, come on Castle, let's go."
by castlecrazed22 February 11, 2012

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