"please" but low-IQ
"Can you hand me that dictionary, please?"
"Sure but what's a dictionary plox?"
A person, usually one who has serious lack of water and has intense social anxiety resulting in them often being unable to speak in front of other people.
He is so shy that he can't talk in public, he's such a Plox.
That guy gets 500ml water a day total, he must be a Plox.