The act of pooping in your pants while eating a McDonald's sandwich. Mcphailing can sometimes be accompanied with retching, regurgitation and in extreme cases, chain farting and/or bleeding.
sparkle had the worst mcphail in the history of the world. she crapped herself while eating a McRib
by Stainberg January 25, 2010
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A Mcphail is someone who plays guitar in a band and loves iron maiden. They also have to have long black hair and play guitar. Also wear t shirts with no sleeves so you come across as hard.
Kern in badminton lessons when he plays guitar with badminton racket, whilst wearing a sleevless t shirt, and he has long black hair.

At that current moment, Kern is a mcphail.
by BB Butters October 29, 2006
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When the workers at McDonald's mess up your order and give you the wrong meal.
Guy 1: Hey! I asked for a Big Mac with extra pickles. I don't even have any pickles!
Guy 2: Total McPhail.
by Pickle28 April 10, 2022
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a skiny slim jim but is 9 feet tall
hi jackson mcphail
by DuRzSz November 10, 2020
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(verb) To hurl someone over one's shoulder and through a brick wall, and then high-five an old person in celebration.
Man, that guy pisses me off so much, I'm going to go Agnes McPhail him right now.
by Mr. Mercutio May 29, 2009
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