Mcphail

[Rihanna]

The act of pooping in your pants while eating a McDonalds sandwich. Mcphailing can sometimes be accompanied with retching, regurgitation and in extreme cases, chain farting and/or bleeding.

[Vania]

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.