I was calmly walking around when I saw an Uncle Grandpa DVD on the ground. I picked it up and brought it at home.
I inserted it in my DVD player and I first checked the extra contents, as usual. The only extra was called "BONUS LOST EPISODE - DEATH OF UNCLE GRANDPA". "Cool!" I said - "I always wanted to see one of these lost episodes where people die, even if I like the show!", so I began watching it.
The episode began with Uncle Grandpa coming up and saying "GOOD MORNING! Do you know what's happening today?" "What, Uncle G?" Asked Pizza Steve.
"Well, today Giant Realistic Flying Tiger's cousin is paying us a visit!"
"She haves a cousin? Wow." Mr. Gus snarked as usual.
"Yes! Her name is GIANT HYPERREALISTIC FLYING TIGER!"
And so she came by. As the name suggests, she was hyperrealistic - I mean, compared to regular GRFT, who moves in a jagged way like she is made of paper cutouts, she instead moved in a fluid, believable way. Also, instead of a rainbow trail, when she flied by she left a trail of BLOOD.
Everyone looked seriously scared by looking at her, and she soon started to rip to shreds Uncle Grandpa, Pizza Steve and Mr. Gus. A fight between the two tigers soon began, but hyperrealistic won against realistic.
The episode ended just like that, with Giant Hyperrealistic Flying Tiger leaving the camper which exploded after a while.
I guess it was made by some Creepypasta fan who was shocked about how nobody did that pun yet.