Michael Bisping gave an interview in which they listed things he gives zero fucks about. One was Halloween, his response was along the lines of "Why would I care about halloween? Am I going to dress up as a sexy wizard? Zero fucks given" And now fans sometimes call him "Sexy Wizard Bisping".
Michael Bisping on a Sports Center Interview on whether he celebrates Halloween: "I'm a grown as man. I'm 37 years old. You think I'm dressing up as a Sexy Wizard or whatever the fuck it is?"
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
After losing to Matt Hughes, George St-Pierre stated he was not impressed and wanted a rematch. However, he did it in the most polite way which is typical of GSP.
Joe Rogan: "Here's Georges." Georges St-Pierre: "I'm very glad you won that fight, Matt, but I'm not impressed by your performance and I look forward to fighting you in the near future."
GSP is not impressed
Between rounds of Melvin Guillard vs Ronys Torres at UFC 109, a bag of ice cubes broke inside the octagon spilling all over. Officials tried to hastily clean up the ice, but knocked over the collection bucket, re-spilling the ice several more times. Then they attempted to sweep the ice through the side fencing and nearly left ice in the cage before starting the next round. Joe Rogan was on commentary and hilariously made fun of the ice situation.
Joe Rogan: "Wow look at all the ice all over the octagon. Oh that's a problem, someone spilled ice in the octagon... (about the cleanup effort) they knocked the bucket over, three stooges, what are you freaks doing? Everybody's booing."
Joe Rogan vs The ICE Spill
After defeating Conor McGregor at UFC 196, Nate Diaz, a betting underdog, said he was not surprised that he won. The exchange happened with Joe Rogan during Diaz's post fight octagon interview. "I'm not surprised Mother Fuckers!" has lived on as one of Diaz's many memorable quotes.
Joe Rogan: "Nate Diaz, you just shook up the world." Nate Diaz: "I'm not surprised Mother Fuckers!"
Nate Diaz | I'm not surprised motherfuckers !
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
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