An Atomic Irish Car Bomb is exactly like a regular Irish Car Bomb, except you use much larger glasses. The primary glass, which is usually a regular 12-ounce pint glass, is replaced with a much larger/oversized beer mug (usually 30+ ounces in size). The secondary glass, which is usually a 1 ounce shot glass, is replaced with a regular 12-ounce pint glass.

How to do it:
Fill the 12 ounce pint glass up halfway with Jameson Irish Whiskey, and the rest of the way up with Bailey's Irish Cream (Yes, that’s 6 shots of each.. 12 shots all together). Then, fill the large beer mug halfway up with Guinness (this should usually be about 15 - 20 ounces).

Submerge the pint glass halfway down in the giant glass of Guinness, take a deep breath, drop it in, and immediately chug like you've never chugged before. When you are finished, slam the giant glass down and take another deep breath. You stomach will feel like you just ate an entire thanksgiving dinner, and you should be extremely drunk within 15 minutes.
Joel: "While we're here, want to pickup a bottle of Jameson?"
TZ: "Yes! Actually, make that 2 bottles of Jameson, and 2 bottles of Baileys. I want to do a few Atomic Irish Car Bomb's tonight!"
by TZ December 8, 2004