The full form of RKO is Randy Keith Orton
This acronym is actually the initials of the very well-known WWE wrestler “Randy Keith Orton” and is also the name of his signature finishing wrestling move “Randy’s Knock Out.”

Origin of RKO
Randy Orton was born on April 1, 1980, and is a third generation professional wrestler. After graduating from high school, he joined the Marines, but was ultimately dishonorably discharge from service for having two unauthorized absences and disobeying the direct order of superior officers. He served time in the military jail at Camp Pendleton. After serving 38 days in the brig, he was
released. Soon after, he made his wrestling debut in 2002. He rose up through the ranks from local wrestling organizations to the big leagues of the WWF, now known as the WWE. He had his first match with the most well-known wrestling organization in 2002, and he quickly became a fan favorite.

Other Meanings
AS is the case with almost all acronyms, this one is no different in the fact that it can represent other phrases, titles, names, etc. Some other things that this acronym can represent are “Radio Keith Orpheum,” “Radio King Orchestra,” “Relativistic Klystron Oscillator,” “Rural King Ohio,” and “Russell K Osgood.” There are some other representations as well.

Conversation Examples
A discussion between two friends via text message.

Friend 1: I am a huge fan of wrestling, but I wish they would bring RKO back.
Friend 2: I agree. He played the part of a bad guy so well. He was one of the best heels in wrestling ever!