Fartblanch 

Flinch in reaction to a horrible fart

Bob passed gas so hard that everyone fartblanched as if a jet had just flown over our heads.

Fartblanch by Sven52 July 28, 2023

fatalanche 

The cascading flab that cliff-hangs over a belt buckle, or in particular, a pair of tight fitting hipster jeans. Most commonly seen on chubby pubescent girls.

"Will you just check out the fatalanche standing in the McDonald's line"

fatalanche by Leha May 13, 2005

Fatalanche 

Alt Def: When the flesh rolls of a morbidly obese individual land on you while sitting at a sporting event, public performance, or on a plane, bus, or train.

Ex. Jack almost got buried in a fatalanche when a giant fat kid sat next to him at the Tiger’s game.

Fatalanche by zookpr April 16, 2009

Fartulance 

The act of farting extremely loud and incredibly stankily.

Aww man.....who just passed fartulance.

Fartulance by Neebee October 10, 2012