A Timmy

An Autistic monkey act, known to be out of control, sometimes seem like they are not mentally okay, and rejects anything that would be considered to be normal. Some may say they are someone, uneducated. Also known as a unique being that cannot differentiate male and female only knowing gay.

"Hey how are you" your friend would ask, you friend will giggle for no reason, jumping up and down.
"Don't be a Timmy you silly monkey"