Ree
The prefix to 'tard'. Ree is used when somebody COMPLETELY fucks up a simple task or gets a question so incredibly wrong that people can be lead to think they are slightly retarded.
I tell somebody to get me a glass of orange juice and they come back with apple juice
Me "WHAT THE FUCK IS THIS"
Toby "I couldn't -"
Me "OH MY GOD! YOU'RE SUCH A FUCKING REE!"