This term is used for insulting someone fat,overwhieght, huge,etc. this is because the Big Mac is a very big and fattening burger from Mc'Donalds. You can also use the term Mc'double.
(In a classroom with a fat teacher) student1"the Big Mac is comeing" student2 " everyone do your work!!" Fat teacher " I'm back now do your damn work!!"
by BILLYGOAT May 13, 2015
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A burger that over the years gets smaller and smaller

Back in 1990 i remember this thing being bloody huge, now days its the size of a tennis ball.
What ever happened to the fucking "big mac"?
by chemical mcfeast October 18, 2005
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The burger of dreams. OR heart attacks, whichever comes first.
I got a big mac and now I'm in heaven! literaly!
by Zach G. January 15, 2004
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Two all beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun.
big macs are gooooooood
by lolay January 11, 2004
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Codename for a fat person. Usually used to notify a buddy that there is an obese person within the premises.
Dude check it out, big mac, 4 o'clock!
by HuFlungPu August 30, 2008
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n. A unit of evil or unhealthiness against which all other things are measured.
1. Twice the calories than a big mac
2. Half the fat than a big mac
3. One eighth the sodium than a big mac
4. More racist than a big mac
5. Ten times more radiation than a big mac
6. More unprotected sex than a big mac
7. More greedy than a big mac
8. 18 more mpg than a big mac
9. Bigger boobs than a big mac
10. half as ugly as a big mac
11. More deadly than two big macs
12. Smells like a steaming heap of big macs

etc.
by ctrlU April 15, 2011
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