mcdonalds connection 

A shitty Internet connection.

We were at Mike's house, and we wanted to play MW2, but he had a mcdonalds connection, so we couldn't without it lagging all the time.

mcdonalds connection by The Grenadier October 23, 2010

mcdonald's internet connection 

When your playing an online game and your internet connection is so laggy that you have no control of your game.

Tim got that McDonald's internet connection, no wander his K/D's so bad

mcdonald's internet connection by Tj1700 April 18, 2016