Irish car bomb

Irish cream and whiskey are traditionally Irish drinks, and car bombs were used during The Troubles.

Irish car bomb (plural Irish car bombs)

1. An American bomb shot cocktail made by dropping a shot of Irish cream and whiskey into a glass of stout.
   • 2013, Lara Lacombe, Deadly Contact, page 12:

     Irish car bombs were a sneaky drink—they tasted like a chocolate milk shake, and more than once he'd been seduced into drinking several of them. It was only after he stood up that he realized how much of a wallop they packed.

Sometimes considered offensive.