Mama Luigi posted a thread that phailed. Of course, Maiq had to corrupt it by posting a picture of a sinking boat that said "All Aboard The Fail Boat!" Mama Luigi replied with something that would be remembered in the minds of everyone everywhere- It sank. Meow Mixer revived the ghey topic, and everyone started posting in it. Mama Luigi thought the phrase sounded cool, and started making topics called It sank.
One topic, Poll: It sank (Topic) was 40+ Pages with it sank (85% of the posts from Meow Mixer).
The phrase is now used as a phrase for when somebody fails at a certain thing.
Mama Luigi has mentioned that it must be spelled "It sank." for it to be correct. Anyone who says "It sunk" or "It floated" phails.