single function application

A computer application that only covers a single, distinct, area of functionality with little or no integration with other processes or other applications e.g. a simple calendar application or a business application that has complex functionality, but on for a distinct business process function such as creating and approving Purchase orders, but no direct integration/inter-dependencies with others functions, such as Financial Reporting or Stock Control in external applications or where activated as part of the same application (therefore not a Single Function Application).
The point is that Single Function Applications more likely to be SaaS products as they are less likely to need customisation or additional coding specifically for an individual installation (customer) or Integration testing.
Therefore Single Function Applications may be easily developed with traditional Agile values, rather than needing a Hybrid approach (e.g. a 'Waterfall' Integration and/or Regression Test phase after development Sprints and before Shipping each Release).

I'm developing a Single Function Application which doesn't integrate with any other areas of functionality, so I won't need to do any Integration testing with other applications of other areas of functionality.

Function-not

This word means to not function.

Ajay, my computer is function-not!

Multi-Functional Bathroom

The name speaks for itself. It had it's appearance in a YouTube Poop about How It's Made called Wow! It's Made! number 3. Apparently, barrels of beer have to be rolled into them so they can age.

"The barrels are rolled into a Multi-Functional Bathroom" - How It's Made Mystery Narrator.

Non Functional Display Unit

Slang term for a female who appears normal and even attractive yet can't function properly in society due to brainwashing by the left, gender studies classes, or prudish beliefs otherwise attained.

Sadly many college women today are NDFU ( Non Functional Display Units )

Function Ego

When your friend is at a hype function and is getting lit with the alt girls with doc martins and trauma

That mf got function ego (kappa)

Micro Functions Network

Micro (microfn.net) is a team that creates varieties community projects. We are most commonly named Micro, but we are also referred to as MicroFN, Micro Functions, MicroFN Network, or MicroFN.net.

I'm looking at this project from the Micro Functions Network.