lifespam 

The length of time an ad/brochure/campaign/joke lasts before becoming annoying.

Wow, that "wardrobe malfunction" was fun for quite a while before it hit the end of its lifespam.

lifespam by Billiard Instructor April 5, 2012

Meme lifespan 

There are many memes who have tragically died. Memes used to have a long lifespan, such as doge,grumpy cat, and other memes. They survived up to 3 years without wavering in popularity. Now memes tend to have a lifespan of a month if they are lucky such as Ugandan Knuckles and Moth.It seems the meme lifespan is slowly decreasing due to many variables including the now fast spreading of memes through Reddit,tumblr, and discord.

Meme lifespans have decreased over the years.

Meme lifespan by Sockth December 12, 2018

Likespam 

Liking way to much useless stuff on facebook.
Liking everything on facebook in a conversation.

Bruno likespammed me again!!!

Likespam by santraxo January 27, 2013

LifeSpace 

A person who dedicates most of his/her time to myspace.com other than living a real actual life and are simply addicted to the online world. These people often update their profiles, usually giving away to much information, or are usually online 24/7, and update their status and mood, a lot. They can often be Myspace whores, except Lifespace people don't usually just add random friends, because often are they people you know. Lifespace people are notorious for uploading many pictures of their so called real life they bluff about, except you come to find they are always online never leaving their homes. They may do Myspace bulletin surveys a lot, or just simply only talk to people over Myspace.

When Susie was asked to go to the mall with her school friends, she simply refused and claimed she already had plans, but when she went home, she logged right onto Lifespace to live her virtual life.

LifeSpace by EcstasyKing October 5, 2009

Likespam 

When you like you own definitions multiple times in a row in order to get top definition

Craig wrote a shitty definition and likespammed it until it got top definition

Likespam by Dubiks May 3, 2019

Meme lifespan 

The time before a Internet meme reaches the World of Warcraft community, which over do and kills it within hours. Expressions may fall under this also if they become lifespan'd similar to the memes.

Death list:
Chuck Norris Facts
Cowbell
Orly
careface
-.-

Visit YTMND or 4chan for a larger list.

Born dead: (Crap from the beginning)
Leroy Jenkins
Dirge
kek

Normal person: Haha, did you hear about the Chuck Norris facts?
WoW nerd: KEK!11 I'M GOING TO CREATE A CHARACTER NAMED CHUCKNORRIS AND A GUILD CALLED NUCK CHORRIS!1
Normal person: ...and i thought this meme lifespan were going to be longer...

Meme lifespan by Kazuo-Kiriyama February 16, 2008

Lifespan 

A place where they say MAGIC happens, but that is not true. It is like an insane asylum. The staff are crazy. Especially Ms.Tuvey

OMG Lifespan is scary!

Lifespan by Unknowngayboy October 5, 2016