A Smart-Arse-Tax is a form of punishment imposed on smart-arses by taking money/ other items of value from friends, peers etc when they demonstrate their ability to be a smart-arse.
Calling someone a smart arse is intended to pull them down a peg or two for adopting a position of superiority, especially intellectual:
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."
a word of expression to when you give up on comprehending someone's words of ignorance, stupidity, absurdity or are too exhausted to formulate a proper response.
Commonly seen in TikTok comment sections in replies to lazy attempts at humor, overconfidentally incorrect statement, or an over-the-top comment or when someone completely misses the mark on something.