Top Definition
A double cheeseburger (plain, just cheese + meat) with an entire Mcchicken (buns, lettuce, mayo, and all) sandwiched in between.
John Smith bought a (plain) double cheeseburger and a mcchicken and is combining them into a Mchappiness. What a lucky fuck. And all for only $2.12!
by McKnowItAll December 02, 2008

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.