mirandathon 

A shortened form of miranda mirathon. A Miranda marathon is a session of watching many Miranda (BBC) episodes back to back.

Anna: Do you want to go out tomorrow?
Emily: I can't, I'm having a Mirandathon with Katie.
Anna: Oh.

mirandathon by MoistPlinth January 7, 2012

mandathon 

A period of binge watching the Mandalorian for multiple hours in a row

Person 1: “Dude I just did a mandathon!”
Person 2: “How many episodes did you watch?”
Person 1: “9, and I fell so much better after that emotional breakdown”

mandathon by mArNiEeEe January 15, 2021