It is used when some people fail to do a idiotically
simple task-like taking a bucket full of
ice from one place to another.Moreover,they do fail it in a so
awkward way.
Mother:Can you give me the
salt,please?
David:Here you are...(he pours the
salt just before he gives it to her)
Mother:Oh, my son,you just did drop the
ice!
David:Yes,I did,mother.Yes,I did.