A person so dumb, they're a rootvegetable, completely void of any sense.
"Holy shit, you just potato'ed all over this post."
"You gotbanned because you needed a potato time-out."
"Why did you DD, you potato?! "
"Share your recent awkward potato moments with me please"
The word potato is often used to infer laziness as in the case of a "couch potato".
This is derogatory towards potatoes and like many minority groups there is now an effort to change the meaning of "potato" in order to prevent offending potatoes it has been decided that instead of using it to imply laziness it should imply activeness or hard work.
Be a good potato and run a mile
Act more like a potato and get a job Get off your ass and be a potato
Save the world, be a potato
Incredibly motionless human who spends the whole day in the same place, position, state and mind because of laziness and lack of life inspiration, or for the pursuit of a unique happy lifestyle.