Let me tell u guys about Kadar
This guy Is a Rear Admiral Kadar.
First time we knew his name is When Fisher Tiger One Shot him with only kicking him when Sun Pirates Clash with Marines ( Jinbe and Arlong was there too ) Never mind the top Image since i can't search only him kicking because he a fodder.
Stacks and sum Troll thought that the Marines that went to egghead especially the one who resemble him with epic glass ( which imo is his son rather than himself ) are In fact Kadar.
Since he uses Sword and got downplayed by Fisher tiger, Stacks and Troll uses this Kadar "meme" to piss off zoro fans.