Alistair Overeem ate horsemeat as part of his diet while he was a UFC fighter. Fans speculate this is why Overeem had such a massive physique.
"I eat 6, 7, maybe 8 times a day. I like beef, beef is good for strength. Cow beef, horse beef, I like fish. Horse is a very good protein, better than beef." - Alistair Overeem
Alistair Overeem - Video Clip 04
After Derrick Lewis knocked out Alexander Volkov, he took off his shorts inside the octagon, leaving only his underwear. Joe Rogan asked him why he did that and Lewis answered "My balls was hot."
Joe Rogan: "I'm here with the winner Derrick Lewis. Derrick, why did you take your pants off?" Derrick Lewis: "My Balls Was Hot." Joe Rogan: "I understand."
UFC 229: Derrick Lewis Octagon Interview
The "Shadow Realm" is a place fighters go when they get knocked unconscious.
Chael Sonnen makes fun of the Brazillian Nogueira brothers. Sonnen claims the Nogiera brothers, new to America, had never seen a bus before and thought it was a horse, and thus tried to feed a carrot. The story has remained a favorite in MMA fandom.
"I was in Las Vegas when the Nogueira brothers first touched down in America. There was a bus that pulled up to a red light and Little Nog tried to feed it a carrot while Big Nog was petting it. He thought it was a horse. This really happened." - Chael Sonnen
Chael Sonnen - Nogueira Bus/Horse Incident [v3.0]
Big Nog on Chael Sonnen Saying He Fed a Bus a Carrot
For situations when a fighter is losing very badly and appear to be taking damage with no chance of winning, and yet the referee does not stop the fight, the ref is assumed to be thinking "If he dies, he dies". Originally referring to referees Mario Yamasaki and Steve Mazzagati who are notorious for letting one-sided beatings go on too long.
3 Minutes of Mario Yamasaki Forgetting That He's The Guy Who's Supposed to Stop the Fight
3 Minutes of Steve Mazzagatti's Most Bonehead Calls
209 is the telephone area code for Stockton, California, home of UFC fighters Nate and Nick Diaz. The brothers have expressed pride in being from Stockton and often yell "209!" at their opponents before and during fights.
Nate Diaz: "209 Motherfuckers!"(any situation)
Nate Diaz takes on Miami fans: '209, Motherf*****rs!”
"Skinny White Boy with One-Punch Knockout Power" is a reference to UFC 135-pounder Sean O'malley. He is tall and lean for the division, but has some of the most devastating walk-off knockouts in UFC history.
Derp: "Why do people like O'malley so much?" Derp2: "Because he's a skinny white boy with one-punch knockout power. His fights are exciting - you never know when he's going to drop his opponent."
Skinny White Boy with One-Punch KNOCKOUT Power | Fight Words