When someone is hit by a nun with a bible or yard stick for swearing at church/school. Also applies to when one's biological sister whips him/her with a long object.
A member of a group of very different people who through trials and tribulations become more then just friends... they become brothers. Through a mutual name, these people take on a new identity of Brother Rats. This term can be used as means to ask a favor as well.
"BROTHER RAT" 'clap' 'clap'
"Hey Rat, gohelp your Brother Rat."
"Hey Brother Rat... do have $20?"