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A way of saying Boi, but in a more relaxed and carefree way. McBoi often refers to a person or thing that has made a mistake in a easy task.
How do you even do that? McBoi!
by IC3T3CH January 22, 2018
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An adolescent male who frequently visits the fast food restaurant McDonalds
Do you see Sam, he visits McDonalds 5 times a week, he's turned into a McBoi.
by shme21 April 17, 2017
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When someone is making you mad/triggered and you need a name that isn’t bad/inappropriate so you call them a McBoi
Amanda said the sky is green so me and my friends call her a McBoi
by Rylan and Faith May 01, 2018
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4
Typically refers to an annoyance, or somebody who constantly makes mistakes in extremely simple tasks.
McBoi, how did you do that?

Really? McBoi!
by IC3T3CH January 22, 2018
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