a full schedule; a lot to do
The image is of you actually having a plate with no more room for any more food. The idiom means that you cannot take on any more tasks.
The idiom usually refers to a suggestion against which many arguments were presented.
If you have your hands full, you can't do anything else with them, can you? This idiom means that you're overloaded and don't have time or ability to do anything else.
It means that the person is giving you their full attention.
It means curvaceous, slightly plump even.
It means being full of joy and laughter.
Probably the phrase should read "full of beans" which means full of energy.
The devil is evil, so if you're full of the devil you are acting in a bad or evil way.
The idiom "stuffed to the gills" means that something is completely full or packed to its maximum capacity. It is often used to describe a situation where there is no more space left.
The phrase a full plate means that you cant digest more food you are very much full. You have enough food
a small plate(full)
Someone who is a fashion plate is someone who always dresses in the latest or best fashion. In today's terminology you could use metrosexual for a man to mean a similar thing.