Shake is a cog move that targets all toons in battle. It is performed by Mover & Shaker and Ambulance Chasers. This move is almost identical to Quake. When the Cog performs this move, it does not use an object, it marches on the spot instead.
This is seen on the first level of Field Offices, if you run into one of the Movers & Shakers you can get up to 30 laff points taken away, if in Donald's Dreamland.
This is in the middle of three Mover and Shaker attacks.