1. When one of McDonald's foods, drinks, products etc. somehow invades the public in a way that says, "I'm lovin' it".
2. When you feel sick after eating something from McDonald.
2. When you feel sick after eating something from McDonald.
1. I'm walking down the road one day and I see a Ronaldmobile drive by...you know a Mctack is coming.
2. After eating two Big macs, drinking two cokes, and 3 medium orders of fries, I think a Mctack is going to happen.
2. After eating two Big macs, drinking two cokes, and 3 medium orders of fries, I think a Mctack is going to happen.
by Riunzo November 30, 2011
Get the Mctackmug. That sweater is so mctacks.!
by KristenDanielle.! April 16, 2009
Get the mctacksmug.