When a woman shits out her pussy, usually when she squeezes too hard in an attempt to queef, after shes eatin a bean borrito from taco bell

The fear of having a Big Mac attack and not being able to sexually satisfy the Big Mac. So you wonder if there is even any point in puting a condem on if the Big Mac is just going to lay there like a dead fish. I mean come on, where both adults here, if you don't want to be here then we should just call it off right now.....
I Love you Big Mac.

The consuming of a Big Mac from McDonald's, and shitting it out in a diarrhea-ish manner later on that day, or the first thing next morning.

An attack that you are likely to experience after a night in bed with the Macnamee...
Often brought on by the lack of clean sheets, christmas smell and southern nature of this Macnamme creature

Main symptoms include
1) a rash
2) using words like concur

3) eating veggie rubbish
4) conistantly applying Mac Lipstick.

Can only be cured by recieving a magic drink for the Goddes Bella B.

When you fuck a bitch so hard that her pussy looks like a Big Mac

when irish people flood the streets in a epic bar fight

or when irish people mac on your girlfriend