Question from a visiting supporter

Hi all,

Villa fan here, I come in peace. I was in the away end yesterday. Not here to moan about VAR decisions or the result of the match just a question about the fans in the ground and a certain chant.

Why is it you chant “yam yam yam yam” to us? Yam yam is a term us Brummies use to refer to people from the Black Country predominantly. Have never heard anyone outside of brum use it. Would love some insight. Thanks!