Moving with a slow, awkward, and unsteady gait, often due to being tired or injured.
Shambling can make people think of zombies or tired, injured people. It can also be funny or silly.
Examples:
The zombie was shambling towards us.
He walked in a shambling way after the long hike.
The shambling man looked like he was going to fall over.
The shambling penguin made everyone laugh.
The shambling bear looked like it had too much honey.
The shambling robot was the funniest thing I've ever seen.