When I was coaching HS ball, our HC wanted to go no huddle and signal in the plays. I was coaching QBs, so I said that I would take the QBs and that "we" would come up with signals that they all could remember and could put them with the play call. For example, we had a Guard pull or trap play that we called "Georgia". To help the QBs, they suggested, hiking a leg like a bulldog taking a piss! Our Tackle pull or trap was "Texas" so we used a double hook 'em horns sign. Our bubble screen was "Boston", so we used an ass cheek, Boston Butt! The guys loved it and really got a kick out of me signaling the plays in to them. The HC looked at me like I was a circus clown on Friday nights but grew to like it and STILL USES IT 11 YEARS AFTER I STEPPED OUT!!