"Bite-sized" usually refers to pieces of food that are small enough to be eaten in one or two bites. 

Idioms are fun, but they can be dangerous.

English Idiom - Cock of the Walk...

If you leave someone high and dry, you leave them unsupported and helpless. In this photo this boat has been left high and dry - literally.

English idiom - to tread the boards.

English idiom - Cover your ears