So let me explained the scenes real quick.
The chefs was saying this,
Random chef 1: "Hawk-Eyed man, huh..."
Random chef 2: "If it's the red-eyed man, I remember him coming to this shop before."
Random chef 3: "Right, you mean that guy who got so piss-drunk from wine that his eyes turned red."
Random chef 4: "Yeah, that idiot who caught on fire and blew up."
Random chef 5: "Heh heh, that was quite a sight."
Johnny in the flashback: Even that "Hawk-Eyed Man" you've been looking for has been sighted there once before.
Zoro: "That idiot got his information mixed up!"
So basically, Johnny mistook some random drunktard who has red eyes from being way too drunk being Mihawk Lmao.
The chefs was saying this,
Random chef 1: "Hawk-Eyed man, huh..."
Random chef 2: "If it's the red-eyed man, I remember him coming to this shop before."
Random chef 3: "Right, you mean that guy who got so piss-drunk from wine that his eyes turned red."
Random chef 4: "Yeah, that idiot who caught on fire and blew up."
Random chef 5: "Heh heh, that was quite a sight."
Johnny in the flashback: Even that "Hawk-Eyed Man" you've been looking for has been sighted there once before.
Zoro: "That idiot got his information mixed up!"
So basically, Johnny mistook some random drunktard who has red eyes from being way too drunk being Mihawk Lmao.