Thursday Morning Riddle

I’m a fixture in bathrooms with faucet and bin;
Set your teeth in a task; let ideas settle in;
To succumb to depression; descend into sin;
And to take out a sub for a Battleship win!

Who am I?

UPDATE: Riddle solved by Alex. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Alex Says:

    Sink

  2. Bill Says:

    SINK is correct. Way to go, Alex!

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