regrebmel 

A young man who is known to have found oil. In the old west, it was unable to "find the hole"

regrebmel by antwon March 30, 2003

regreteels 

When you have da feels because of your favorite character and regret (partially) loving him/her.
Pretty common in anime/game fandoms like Danganronpa.

"Man, I had so many regreteels with (insert character)'s death yesterday..."

regreteels by Nemurin October 15, 2016

regretel 

What an animal wif a securely-gripping prehansel tail never feels when hanging from a branch.

Maybe if da two famous fairy-tale children had possessed preHANSEL tails, they might have been able to traverse da forest by swinging through da tree-tops, and thus they could have avoided feeling da reGRETELs of getting caught by da wicked candy-cottage witch, since she could not have reached them when they were up dat high.

regretel by QuacksO June 4, 2023

Regretment 

When you resent and regret meeting a coworker.

I have a regretment about showing him how to do his job.

Regretment by TOPHAND February 29, 2024