colorful expressions and sayings in English

Hello! I am Valentina and I am an Italian tutor. I always watch shows in original language and I understand 95% of it fortunately, but I still have trouble remembering sayings and colorful expressions in English to use, such as (only the last couple I've learnt) "top notch", "worked like a charm", "pull the job". Can any native English speaker be so nice to write a couple of his favorite expressions? In exchange I can provide their correspondent in Italiano :) or else.

I am particularly interested in how you express that something is (or has been) extremely hilarious or funny for you... like that you laughed until tears? XD Or if you are extremely bored?

Thanks in advance!