"Dibs" is an informal word meaning claim on something, so first dibs gets the first claim or first choice: I call first dibs on the Halloween candy!

it got lost

The origin of the term 'got dibs' is unknown. Dibs was a game similar to jacks, and the term also referred to money.

Dibs - 2012 was released on:

USA: 1 October 2012

Dibs typically takes priority over nose goes. When someone calls dibs on something, they are claiming the right to it, while nose goes is a way to determine who takes on an undesirable task.