it means he's trying to insult you! A pro refers to a professional as in you were right : Prostitute.
"Pro Deus" is ungrammatical in Latin. It doesn't mean much of anything.
Pro-environment means for environment
Pro usually means professional
The prefix "pro-" means in favor of, supporting, before, or forward.
pro means forward or before
Pro is short for Professional. Pro is the opposite of Noob.
In "proposed" the "pro" is no a prefix, it is part of the word.
Could you mean pro tempore or pro tem? Pro tem means "for the time being" or temporarily.
No, you are only a pro if YOU are scratched up, sometimes, you can be a pro and not be scratched up if you are a SUPER pro
Usually abbreviated to pro tem, pro tempore means 'for the time being'.
'for', or 'in agreement with' .. if someone is pro-something, they are in favour of something.