What a visual image! Ha ha! I love it, frank!
I'm not sure if "wiggling-waggling the armpits at each other" is the correct term, though.
When one watches the primitives first hand and up close, one notices that when the primitives get mad at each other, they tend to bend their knees (but still standing), growl and snarl and spit at each other, and bend their arms inward, ticking their armpits with the tips of their fingers.
Is this "wiggle-waggling," or do I need to be more descriptive?