Kukas

A non-offensive nickname for a human being with a significantly larger mouth. Hubris is a common sign for a Kukas. Being in close proximity of this human being could be bilious. Closer contact could be calamitous. An excellent word to describe 'arguing with a determined Kukas' is Sysophean.

If some words aren't understood, please use the internet

Bert: IM THA BEST (Hubris Of course)

Carl: Stop Being A Kukas

Bert: Still, IM THE BEST (clearly ignoring statement above)