"it's a bucket"

if you've seen that one mario movie, "i think you're nuts" meme on twitter, you'll know.
▼ Epic links to my other socials! ▼
[MAIN CHANNEL]
► / timothycrawfordboss
[TWITTER]
► / timothytcb
[TWITCH]
► / timothycrawfordboss
[JOIN THE CHANNEL]
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[@subwaysandwichfootlong4401]

what is the meaning of this