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 Boobies 

A variety of bees (Apis mellifera maximus) that produce milk, but have been bred to be more aggressive than regular boobies.

Those are some killer boobies-- you'd better be careful or you're going to get hurt if you try to handle them.

Killer Boobies by Ian December 7, 2004

killer clown 

A person dressed as a clown with murderous or harmful intent. Possible origins include serial killer John Wayne Gacy, who became known as the "killer clown" when he created a series of oil paintings on death row on the subject of clowns; or an incident in Boston in 1981 in which dozens of reports surfaced of children being abducted by people dressed like clowns.

"The Killer Clowns in your town raising all hell" -Tech N9ne/"Imma Tell"

Note: the 1981 Boston incident of clowns abducting children spread to Kansas City, Missouri, Tech N9ne's oft-referenced hometown.

killer clown by J-Mills2 November 13, 2007

Killer Bean 

I have the power of killer and bean on my side. AWWWWWWWWWWWw

Its lit brah - killer bean moment

Killer Bean: *Teleports behind you* Nothing personal Kid
YOu are dead

Killer Bean by BigDingDing June 27, 2019

killer crap 

(Noun) (killur krap) Mushy poo exiting at high velocity through the rectal cavity leaving you in a cold clammy sweat.

The kind of POO that killed Elvis.

(Verb)

When you eat a lumberjack slam at Lennys at 5 am and you have to take a "killer crap" 15 minutes later.

(Noun)

He wiped the sweat from his brow and said "Man,...That was a killer crap". "I wouldnt go in that bathroom for bout 35 forty five minutes"

killer crap by Ivan Vila June 30, 2006

Killer Body 

This is reserved strictly for females.

Used to express wonderment, amazement, desire and a thank-you to God when made in referrence to a woman. There is no perfect scale, set of rules or guidelines for a killer body. This term's credibility depends upon the credibility of the man using it.

"Oh fuck, she's got a killer body, FAP FAP FAP FAP FAP FAP!!!"

Killer Body by TittayMastar June 5, 2003

Killer queen 

Daizan no bokudan, bites za dasto!

Killer Queen has already touched the doorknob

Killer queen by Nasier November 18, 2020