For those who haven't seen it...A1 would be inbounding at A's basket. A5, who is on the opposite side of the floor - away from A1 - drops down and starts barking in hopes of having any or all B players look his way. Then..the inbound...the easy bucket...we go the other way - ideally. Again, it didn't work.
I don't think I could call it taunting. Maybe "inappropriate language"
???
Obviously, from the original question, I did nothing. I did ask my partner, "Should we have called something?" He couldn't think of anything specific either.
I guess it falls into the "Ugly isn't necessarily a foul / violation" category, and we play on.