MacAttack

When you just ate an excessive amount of McDonald's, and you feel really gross and unhealthy.

Dude are you okay? You don't look too good...
Dude, I'm having a MacAttack. Why did we even get McDonalds ew.

by danigguh August 16, 2011

Macattack

The compulsive consumption of 3 or more McDonalds Big Macs in one sitting.

1. I had a Macattack on the way home after the football game.

2. We went to McDonalds and Nick had a total Macattack.

by Jack Bauer. November 24, 2009