A panzy, a bitch, a ginger (not necessarily with red hair). This can be a man or a women and it has no specific race, religion or creed. Its a simple word to describe someone weak or pussy. A whimp.
Dave- "Dude, this shit is hellaheavy."
Bob- "Stop being such a limp wristed bitch!"
A wristbreaker is a large test or hand-written essay that requires an unusually large amount of writing compared to the average. You know you have a wristbreaker when the next day, it looks like you injected your wrist with steroids.