used to describe someone who outwardly exudes zero stimulating personal qualities, usually living a very unexciting and generally boring-as-fuck life; in other words, a quiet, lifeless human who deprives you of solitude without providing you company.
Can be used as a noun or an adjective interchangeably for anyone who possesses the above characteristics.
Used as an adjective:
Girl- "Why did you break up with her, you were together for so long!!!"
Guy- "I just kind of realized we're very different people - I love to live life and just have fun and that's like totally not her at all. I couldn't see myself marrying her. She's too potato for me."
Used as a noun:
Girlfriend- "I'm still not comfortable with your assistant being so pretty, it makes me nervous."
Boyfriend- "Please don't worry, you have nothing to worry about. She's a potato. Not a threat, hunny."
Potato. It's a way of life
A way of living
Everyone is a potato
No one can change that
Sure theres ugly ones, gay ones, pretty ones and depressed ones
But only 1 is the best
And that my friend is a baked potato (no that is not a racist joke chill)
Now I shall say, all potatoes go to hell