unterborn 

A man that tends to have a large disability/ retardation

Honestly josh is such an unterborn

unterborn by Penfield Highschool April 12, 2019

unterpoon

Someone who will never ever, under any circumstances, get laid. If they attempt to hire a prostitute, they will get slapped by said prostitutes. Is among the lamest people on the planet

Wow that guy is an complete unterpoon, I feel bad for him

unterpoon by Kingmaker May 16, 2006

underburner 

A giant, slow-growing, epic-ly painful zit. The kind that you can't pop successfully for days even though it resembles a small volcano on your face, because its source is so deep. Often used as part of the phrase "massive underburner."

This term was coined by Alice Thomas in Columbus Ohio, in approximately 1993.

I have a giant underburner on my chin.

I wish I could pop this dang underburner!

Look at this massive underburner!

underburner by DoobyMaryJ November 5, 2010

unterberger 

the best name you can call someone.

Dude you are so unterberger after that jump!!!

unterberger by ihbfajsdbbs June 26, 2008

Unterbrink 

A person who is close to insane.
An on edge person.

Watch out, I think that boy is a unterbrink.

Jack seems a bit unterbrink today.

Unterbrink by zegerman January 28, 2010