Didn't Punk try and claim to be THE locker loom leader on Raw circa 08 and Jericho (and Edge) laughed at him in front of all the boys?
That's two stories conflated.
The locker room leader story has two versions:
The first being Punk standing in front of the roster and saying "As locker room leader, I'm telling you to pick up after yourselves!" and Booker T responded to that by picking up an armful of rubbish, dropping it on the floor, and saying "Are you gonna tell me to pick it up?"
The other version of it is that there were a speight of items being stolen in the locker room, and Big Show, and Booker said "Come on, we're a family on the road, we can't be stealing from each other. This is gonna stop right now, because we're not gonna tolerate it". Then Punk then stands in front of them and says "If I find out who it is, I'm gonna kick their fucking ass!!" again with Booker saying that he thought "I hope you find that stuff in my bag".
The Jericho/Edge story was at a house show, it was Punk/Jericho vs. Morrison/Edge in a tag match, Jericho and Edge were watching the Olympic Gold Medal hockey match, and Punk is saying "We need to talk about the match", and Jericho/Edge were saying "It's okay, we know what we're doing, we can call it out there", and Punk wouldn't accept that. They got to the match, and Punk refused to tag Jericho in for the entire match. They got backstage, and confronted Punk and he said that Jericho/Edge were "Unprofessional" for watching hockey, and not wanting to go through the match. Edge and Jericho then said "What's unprofessional is going out there and doing what you've just done. There are people out there who paid to see Chris Jericho wrestle, and you took that from them".