To be so mashed that you are really incomprehensible as if you're body's hear but your sensate mind has definitelytransported to a far, far distant planet
A person that has such bizarre sentimental attachment to a space rock, that is closer in relationship to a comet than it is the 8 true planets in our solar system, that they will fight tooth in nail with anyone who states that the reclassification was justified. They do so with fairly irrational arguments and by neglecting the facts involved.
Everytime someone posts a picture of the current solar system, these damn poor plutoers come out in tears and protest over a fucking space rock that has no impact in their lives what-so-ever. It ruins any conversation you try to have on a page.
Adjective used to describes someone of small stature or intellect. Usually used to insult someone who is small/short or is just fucking stupid. (Derived from the astronomical term Plutoid, another name for a dwarf planet).