also called McKid, name given to the current crop of children born from about 1990 to the present, of which a large percentage are overweight or obese due to eating fast food (hence the name) and other junk food and not getting much exercise, especially due to excessive video game playing
Parks are often empty on the weekends due to McChildren staying at home and playing video games.
A typical McChild's parents will make up an excuse to keep their child out of PE classes.
by New English December 07, 2008

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