"I'm Stuck!" - whenever lying on the floor not wanting to move, or in the car strapped by seatbelts.
"Webs!" or "No Webs!" - his assessment of any interior's cobweb status.
"DVDVD" - meaning DVD.
"One....six, seven...six, seven...six, seven" - when counting anything.
"No, I'm fine" - when telling him we're going to be doing something he doesn't want to do, like clip toenails or drive for eight straight hours.
"I hold you!" - meaning of course "hold me."