"A full cup" may be referring to "half empty" or "half full" cups as "full cup" is not a very well known phrase. In either case, the phrases tend to refer to someone being optimistic or pessimistic.
In the King James version * The phrase get full is not mentioned * The phrase got full is not mentioned
like you are on a mountain
caring
The phrase a full plate means that you cant digest more food you are very much full. You have enough food
As full as it can possibly be
The phrase full of malarkey means that one is full of foolishness and nonsense
FA CUP mean Football Association Challenge Cup
Alot to listen to or think about.
full of corrections.
To make a complete change
This isn't slang or an idiom -- it just means to drink a cup of tea, nothing deep or thoughtful about it really.
Probably the phrase should read "full of beans" which means full of energy.