The “Tax” referencing the amount a single fan pays to an OnlyFans model. Fanum being the singular of Fans similar to Medium being the singular of Media.
by Youmou January 7, 2024

So "fanum tax" is a word originally used by former twitch streamer, Kai Cenat. It is to describe the action to steal someone's food, but it is not commonly used as it's defined.
by kill2332323 March 27, 2024

When your best friend named Jayvee Fanum Tax you at Mcdonalds, and don't pay you back. UNTILL, his friend pays his debts off.
The Jayvee Fanum Tax
Jayvee: "Hey wanna get me McDonalds Pleasee!"
Mg: " You got money?"
Jayvee: "Oh shoot naw, i'll pay you back promise."
(2 Weeks Later)
Mg: "When are you paying me back?"
Jayvee: "OH SNAP NAWWW, Tmrw trust"
JJ: *Sigh* "Here I'll pay his debts for him"
Jayvee: "Hey wanna get me McDonalds Pleasee!"
Mg: " You got money?"
Jayvee: "Oh shoot naw, i'll pay you back promise."
(2 Weeks Later)
Mg: "When are you paying me back?"
Jayvee: "OH SNAP NAWWW, Tmrw trust"
JJ: *Sigh* "Here I'll pay his debts for him"
by Reizirth December 10, 2024

by Rotat_the_planet February 27, 2025

June 19th. The day that the almighty king fanum taxes all foods. Except for salads of coarse *laughs cutely*. Fanum tax day is on the same day as Juneteenth to honor the ancestors of my king fanum *busts*. If you dont follow what Fanum says you will be forced to play fortnite with only sweats and newgens, and lose your edging streak.
Person 1: Are you celebrating National Fanum Tax Day or Juneteenth?
Person 2: National Fanum Tax Day Of Coarse!
Person 2: National Fanum Tax Day Of Coarse!
by AmpHouseLuvr69 November 15, 2023

by SavageBoi2020 February 25, 2024

Fanum tax is the action said right before someone "taxes" around 20% of your food for no particular reason.
by moe lehster May 6, 2024
