For use when you want to send someone (usually dumb or lower in the chain of command) away from a room so that you can discuss private matters with someone else.
To make someone scarce.
Possible gangster use. Probably a line in a movie.
Girl: Hey! What did I say a minute ago about which items I wanted to order?
Guy: Jeez. Someone's been once 'round the goldfish bowl! It was that new book you saw.
Your girlfriend is in the bath tub, you are positioned on the toilet or adjacent piece of furniture. You proceed to pleasure yourself reaching climax, letting your tasty flakes fly into the water to be devoured by the waiting mer-woman.