sinking bottles 

A colloquialism used in the Upper Midwest for ice fishing. Ice fishing mainly involves putting a line into a hole in the ice and then drinking beer, playing cards, and watching sports. Empty beer bottles are dropped in the hole and filled with water to sink to the bottom of the lake. There are usually more bottles sunk than fish caught, thus you're in an ice house "sinking bottles".

Bryce and I spent about 5 hours sinking bottles and didn't catch a single fish. We did get a nice beer blanket on though!

sinking bottles by taylen24 January 14, 2015

sinking a battleship

to drop one, or to make an excretion

It smells in there! What were you doing? Sinking a battleship?

sinking a battleship by hewhospoopsnot June 29, 2006

Sinking Your Own Battleship

Any action taken by a person looking to have a relationship with another person, that effectively ruins their own chances of having said relationship

Guy 1: "So I was really into this girl, but when I walked up and kissed her on the cheek, she freaked out."
Guy 2: "Way to go man! Talk about Sinking Your Own Battleship!"

Sinking Your Own Battleship by fan187 July 12, 2012