Refers to the popular South Korean movie "Old Boy." If you just had your mind twisted and fucked by something such as an intricate movie or a web of conspiracy, you'd say "I just got old-boyed."
Shit, dude. My girlfriend just told me her ex-girlfriend isn't lesbian anymore so she broke up with me to marry her and she also said she was dude but I just didn't notice her penis during our relationship. I got old boy-ed.