bring (one's) arse to an anchor
To be seated and still, likened to a ship being moored in place by an anchor. Primarily heard in UK. Kids! Quit running around and bring your arse to an anchor!
bring (one's) ass to an anchor
To be seated and still, likened to a ship being moored in place by an anchor. Primarily heard in US, South Africa. Kids! Quit running around and bring your ass to an anchor!
at anchor
The state a ship is in when it has dropped its anchor. We're going to stay at anchor for a few days so we can really enjoy the beach. Men, the ship is at anchor, so it's time to move out!
drop anchor
To let down the anchor to secure a ship. We've been sailing all day, and here seems like a good enough spot to drop anchor, don't you think?
swallow the anchor
To retire from life at sea. After so many years sailing the seas, I knew it was time for me to swallow the anchor and adopt a more normal lifestyle on land.
weigh anchor
To hoist the anchor so that a ship can sail. Weigh anchor, boys—we're going home!