Sank the Titanic 

When you have really big poo and it makes an incredibly loud noise as it hits the water and gives your arse a good splash.

Derives from tragic accident of the Titanic that sank in the mid-atlantic in 1912.

*All quiet*
Rodger - on the toilet: *Loud splash noise*
Christie - in the other room: Jesus, Rodger was that you? Sounded like you sank the Titanic.

Sank the Titanic by JohnJoeTheGood May 15, 2019

Sank 

To sink mean to fall off or die in popularity

Or to not be relevant anymore.

Q: Have you heard the new blue face album

A: Nah he Sank

Sank by Simpster420 November 17, 2020

Sank the titanic 

When you have been for a shit and the turd is that massive when you flush it, it would sink the titanic

I wouldn't use that bathroom, I just sank the titanic

Sank the titanic by BigBadDom69 September 17, 2021