Oh neptune

Used when you remember what planet is after Uranus

Saturn...Uranus...Oh Neptune!

by Someone cool and famous June 9, 2019

oh neptune

An expression used when something goes horribly wrong but you are somewhere where it is inappropriate to use the term "fuck" or any other vulgar therm.

Oh neptune the orphanage is on fire!

by BillNyeTheCoolestGuy September 16, 2015