I've had an idea for a physical Buff sign to do with your hands. I call it Buffalo Fists.
make your hands like you playing an invisible thumb war, stuck them out in front of you and cross your arms and put them together so your pinkies are against one another. the thumbs are the Buffalo horns.
As an alternative at games you can hold each fist up in front of you against your neighbor's fist and pump them back and forth in a 'punching motion' and then do the chant you guys just made up!
HAHAHA, in my head it is awesome. in reality...welp I dunno.
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