I think it means they are trying to boss you around like one of their hens. You'll see them doing it to their hens, the one legged dance.
My most spoiled rooster (a buff orp) was my sweetest then MEANEST rooster. He was second in command and when my black copper roo passed away he took his job WAY TOO seriously. He did have some medical issues so I will forgive him for being mean but he had no fear nor respect for me and also became very sneaky about getting you when you weren't looking. Since then I try very hard not to over baby my roos. I love them and will pick them up but I prefer them to be a little less confident around me. lol.