What is Sundance Kid?
1.
The bad ass mother fucking Jesus of Train/Bank Robbers. Famous for being only person with blood made of gunpowder and beer. Star of 'Butch Cassidy and Sundance Kid'. He's Chuck Norris' worst nightmare.
Sundance Kid would beat the shit out of Chuck Norris.
See
2.
A guy that is very whipped or tool like, usually by a maculine woman
Oh great here comes Charlie he is such a sundance kid