Neptune 

A fucking idiot that has no friends

Person one-Hey neptune do you have friends?
Neptune-what are friends the fuck?

Neptune by Neptunei6940 December 24, 2021

Neptune 

a furry bitch with a nintendo obsession

"neptune is a weird furry bitch who plays cooking mama on her nintendo switch lite"

Neptune by fatcocchaver July 15, 2022

neptune 

either a planet called neptune which is usually associated with the sea, or old man jenkins who called himself neptune

the false king neptune was old man jenkins
the planet neptune could not support life as earth could

neptune by nonekopopo February 17, 2023

Neptune Effect 

When you think you hurt something, but it was minor.

When I sat on my finger, I thought I broke it, but it was the Neptune Effect.

Neptune Effect by J-Dogg147 July 30, 2016

neptune's kiss 

The splashback of cold bog water up your ringpiece when dropping the kids off at the pool.

(from cubicle): "Aaaaaah"
(from other cubicle): "Neptune's kiss?"
(from first cubicle): "More of a peck on the cheek."

neptune's kiss by Dannyboffin October 28, 2007

Neptune’s Poseidon Powder 

Cocaine
Krabby Patty secret formula

Put some Neptune’s Poseidon Powder in the patty.

Neptune’s Poseidon Powder by TheEmperorOfLightSLO January 15, 2019

Neptune's beard 

A way to say 'Fuckin' A' without saying 'fuck'.

Q: "Did the Steelers win yesterday?"
A: "Neptune's beard! They crushed those Ravens!"

Neptune's beard by HawaiiThad June 4, 2015