irish roulette 

Where several men have sex with a woman unprotected, and the loser is the one who impregnates her.

"Man, I just found out I lost that game of Irish Roulette, I'm going to be a dad now"

irish roulette by GodzillaX8 September 1, 2008

Irish Roulette 

The bar customer gets a free beer (or portion thereof) when the beer keg kicks while the bartender is drawing the beer from the tap.

Bob won at Irish Roulette when the bartender got a wet tee shirt.

Irish Roulette by BobbyMac1960 May 30, 2021

Irish Roulette 

A concept similar to that of Russian Roulette, but a semi-automatic firearm is used in place of the six-shooter. While the odds vary depending on the quality of the weapon itself, there is rarely a clear cut winner.

"So who won that match of Irish Roulette yesterday?"
"... It was a draw."

Irish Roulette by Tarren October 26, 2005

Irish Roulette 

There are six shot glasses each flit with whiskey. One of them has poison in it. The unlucky person will drink the one with poison and die as quick as the poison takes effect. Similar to the famous Russian Roulette.

You can only play Irish Roulette if you have the luck of the Irish.

Irish Roulette by Talking Orange March 23, 2011