At the the UFC 202 weigh-in face off, Mike Perry offered a handshake to his opponent Hyun Gyu Lim, removing his hand at the last second and yelling "You Thought You Had a Friend Boy!". The phrase has become popular among fans.
Mike Perry yelling at Hyun Gyu Lim during their UFC 202 face-off: "You thought you had a friend boy!!!! Aghhhhhhhhh!"
You thought you had a friend boyyy!? AAAAAAAAAAAAAA
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
To fight at a faster pace than your opponent can maintain, tiring them out. Nick Diaz is a fighter known to weaponize pace. His training involved lots of cardio, so he was able to have higher output than his opponents during fights, often successfully tiring them out and overcoming them.
"Poirier has never been given credit for his ability to weaponize pace. Dustin's former opponents will talk about how hard and in your face Poirier is." - Chael Sonnen
Sea Level Cain is Cain Velasquez at his best - at sea level. Cain Velasquez is known for having great cardio, but when he fought in Mexico City, which is at very high altitude, he gassed out early and lost to Fabricio Werdum. People think it must have been the altitude, so Sea Level Cain is born.
A signature move of fighters Nick and Nate Diaz. The brothers often open hand slap their opponents during MMA fights, a move named after their hometown, Stockton, California.
(Nick Diaz slaps Carlos Condit during UFC 143 main event.) Joe Rogan: "We've never seen anybody do that to Carlos Condit before." Mike Goldberg: "That was the Stockton Slap."
STOCKTON SLAP BY DIAZ BROTHERS
Nick Diaz - Stockton Slap
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