A weak armed person, usually a pitcher in baseball or quarterback in football. Alternatively a noodle arm. Taunting chant in movie Eight Men Out directed at weak armed pitcher. Arm is weak and lacks muscle and looks like a rag. A humiliating thing to be called. Bernie Kosar personified it.
"Hey rag arm, you couldn't break a window with that weak stuff. Your not a pitcher just a belly itcher, you rag arm scrub!
by 80's rock April 20, 2023