undefined

A word in the urbandictionary that is lacking definition.

This word was previously undefined.

by Denis Baldwin June 3, 2004

underlife

Those emotional truths that reside beneath the respectable patina of our public lives.

"Be careful.
Protect your strange and beautiful
underlife."

From the poem "Take Care" by January Gill O'Neil, from the poetry collection UNDERLIFE.

by January Gill O'Neil February 3, 2010

undefined behavior

Undefined behavior results when programs attempt to do things for which the standard defines no semantics, and requires no diagnostic either. Examples include dereferencing invalid pointers and dividing by zero. Executing such programs may cause them to produce incorrect results, crash, silently "work", or even format the hard drive.

It is commonly joked that undefined behavior allows the compiler to insert code that will start a game of nethack.

by henke37 May 23, 2014

underling

Assistants to the big cheese in the office.

The underling's job is to fetch my coffee in the morning.

by Sandi68 April 28, 2006

Undefined

What you wish half of the words on here were.

Undefined. Magical Word.

by Jaibow August 29, 2011

Undefined

⠀

Person 1: undefined
Person 2: Ah, yes, indeed.

by h is a pog letter pog pog pog February 25, 2021

undefined

The word that just popped up when you searched for a word that isn't in urban dictionary.

You: WTF!11!!ONE!!! UNDEFINED??!?!?!! WTF!

by PiracyX September 9, 2009