This can mean bin: “The bucket is all that’s good for.”
To bucket something is to throw it out, reject it as not good enough: “Give me one good reason why I shouldn’t just bucket this essay?”
A bucket can also mean a large amount of alcohol: “You must’ve had a right bucket last night to end up in a state like this.” Someone who regularly drinks heavily may have it said of him that he takes a good bucket.
If the weather is said to be bucketing it down (or bucketing down) it’s forcefully inclement; like the sky is pouring down buckets of water (on Scotland, typically).
If something or someone has kicked the bucket it means it has died or the gadget no longer works: “Would ye look at that! My radio just kicked the bucket.”
If someone asks, “What’s wrong with his bucket?” Rather than enquiring about the state and upkeep of his garden and household instruments he means what’s wrong with his dour face. Dour (rhyming with moor) means gloomy or sullen. This question is usually taken to be rhetorical.
Hear it (as my youngest interrupts me).