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killer app 

"An application that proves the usefulness of the underlying technologies"

Defined by Jawed Karem in the speech "YouTube: From Concept to Hyper-growth" held at University of Illinois at Urbana-Champaign ACM Conference, Oct 21, 2006. (www.youtube.com/watch?v=nssfmTo7SZg)
A typical killer application:
- the first spreadsheet application

Killer apps in the internet domain:
- Wikipedia
- LiveJournal
- MySpace
- Flickr
- YouTube
killer app by Papy Jojo December 15, 2008

Killer App 

When at the click of a link sent via an app, someone’s digital device is virally infected or disabled, often with the terrorist sender or hacker able to retrieve the data stored on the recipient’s phone, tablet, or watch.
After John unsuspiciously clicked on a link in a WhatsApp fake member’s message, no one in the chat group anticipated that the killer app would facilitate the transmission of the Russian virus at such a lethal speed, which wiped out the data stored on all twelve members’ devices.
Killer App by Covido March 5, 2022

Killer app 

Mobile application with doubtful usefulness that gets downloaded and used by a very large number of people, often without a valid reason.
Hey, once you are done with Candy Crush, check out Quads and Flappy Bird, they are the latest killer apps to hit the App Store!
Killer app by n.tex January 25, 2021

Killed Two Birds With One Apple 

Similar to the phrase "kill two birds with one stone" this term means to complete two discrete tasks with a single action. The term traces its origins to a practice, originally made popular by aspiring major league baseball players on the Gulf coast of Florida, of hurling apples at the apparently limitless number of pesky seagulls.
As Mariah's girlfriend walked in on him banging her mother, Mariah thought to himself, "I've just killed two birds with one apple"; I've both fulfilled my MILF fantasy and ended this shitty relationship.

funiosity 

The art of being peculiar, but in an amusing fashion.
"Wow, look at that dog running on three legs"
- "Yeah, that sure is a funiosity"
funiosity by Supersonic Stevie November 23, 2007
Word of the Day on July 25, 2026
A toe rag was originally a foot wrapping used, since mediaeval times up until the mid-nineteenth century, to protect the foot from chafing by boots or shoes. As these were, quite literally, rags they weren’t usually washed, and so with use they became very smelly until they were thrown away. Because of the similarity in smell, toe rag also became the name applied to dried, salted cod or other things with a strong, unpleasant, fishy smell. It didn’t take that long before the name was applied to someone who was an obnoxious, unpleasant OIC.
1 “Socks! Those aren’t socks you smelly git, they’re toe rags!”
2 “What have you been cooking? Smells like toe rag!”
3 “I can smell ‘er fanny from ‘ere, proper toe rag.”
4 That Heale Malcolm is a right toe rag.
Toe Rag by AKACroatalin November 29, 2016
Word of the Day on July 24, 2026