>>63383537Gyatt, or Gyat (Often spelled all-caps i.e. GYAT!!!) - Monkeybabble way of saying "God", shortened "Goddamn", which they say when they spot a woman with a fat ass, shortly before saying "Muh dik", grabbing their crotch, and shuffling their feet.
The Rizzler - "Rizz" is a monkeybabble way of shortening "Charisma", which is basically another way of talking about how much "game" you have, AKA how good you are at getting women. "The Rizzler" is taking that and turning it into a noun, so someone who is very good at "getting bitches" is a rizzler.
Skibidi - A word taken from the Skibidi Toilet series, which is a series of Garry's Mod videos commonly featuring a character's head poking out of a toilet. "Skibidi" is one of the nonsense words featured in a song which plays in the shorts.
Fanum Tax - Comes from a Twitch streamer named Fanum who is part of an influencer group called AMP, who frequently "taxes" the other memebers by taking bits of their food while they eat. Most people don't know actually know what "fanum tax" means, so for the sake of this song it's basically just another nonsense term.
Sigma - From "Sigma male", an off-shoot term from "alpha male", a "sigma male" is defined as an individualist who focuses on being cool through his own self-worth and lack of need for external validation as opposed to an "alpha male" who is defined through more traditional worth such as high social status. "Sigma" is pretty much always used ironically in a mocking way to make fun of loners who think that going against the traditional grain of society makes them look cool. The modern day "fedora tipper", if you will.
All of these words used in this particular song are deliberately meant to serve no real meaning when combined; the song is trying to be confusing to people by throwing random slang words together and trying to be as non-sensical as possible to draw humor from that (see: "lol so randum"). It's quite common for zoomer humor these days to do that.