When you have a platonic sexual relationship but you know that the "just friends" part was never a real thing in the first place. You pretend like it exists, but it was always a myth, much like the planet Pluto.
JB: Let's be strictly plutonic friends who have sex whenever we feel like it.
Eris: Sounds great! I love pretending, so that will be fun.
JB: Great, can you give me a plutonic blow job?
a friendship or relationship in which there is no possibility of romantic progress.
"I like you, but only as a friend."
that's some plutonic shit right there.
Adj: A one-sided relationship that not only fails to ever get romantic, but that manages to get you publicly humiliated in front of your peers when the object of your affections openly dates someone else.
from: "platonic" and the demotion of Pluto to dwarf planet status.
student 1: Hey, WTF? Isn't that your girlfriend smooching with the captain of the football team?
student 2: Yes, Betty and I have a plutonic relationship. She respects my mind.
student 1: Sure, you sorry-ass loser!
A penatration-based sex act so warped and craven that it is "of Pluto", i.e. beyond anal. Although "plutonic" does not refer to any specific act, it could include such acts as ear sex, removing someone's glass eye and having sex with the empty eyesocket, sex with a colostomy stoma, an esophagal stoma, or stab wound.
John and Kim's relationship progressed quickly - on Wednesday they were platonic friends, on Thursday afternoon they were fucking, and by Sunday they started getting into some plutonic shit.
A non-sexual relationship between a man and a woman that could /should only work in outer space.
After mastering artificial gravity, faster-than-light travel, and building this colony on Pluto, it's really easy to just be friends with hot chicks in a totally plutonic way.
Honestly, baby, I'm not cheating, me and Jennika are just plutonic friends!
temporary relationship, be it emotional,personal,marital, financial... that could happen to somebody somewhere in this planet.
Her love towards Jim was plutonic.