Dana White commonly calls people "Goof" and so the nickname has stuck to him. He is now known as "The Goof".
The "Shadow Realm" is a place fighters go when they get knocked unconscious.
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
At the presser for UFC 262 Tony Ferguson accused Michael Chandler jumping the line to fight for a title, stating that he had "Dana White Privilege". To have "Dana White Priviledge" can be said of any fighter who is getting special treatment from Dana or the UFC..
Tony Ferguson: You fucking dodged me too Chandler. Michael Chandler: You could've fought me January 23rd. Tony Ferguson: You fucking said no man. You got this (title fight with Oliveira) handed to you. You got Dana White Priviledge.
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Daniel Cormier did the towel trick (pushing the towel down to lighten yourself on the scale) in order to make weight for his UFC Light Heavyweight title defense against Rumble Johnson at UFC 210, which sparked controversy.
UFC 210 Embedded: Vlog Series - Episode 6
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
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