ephemeral 

1- Lasting for a markedly brief time: “There remain some truths too ephemeral to be captured in the cold pages of a court transcript” (Irving R. Kaufman).
2- Living or lasting only for a day, as certain plants or insects do.

"the ephemeral joys of childhood"; "a passing fancy"; "youth's transient beauty"; "love is transitory but at is eternal"; "fugacious blossoms"

ephemeral by phatmatt27 September 7, 2005

ephedrone 

Slang name for methcathinone, used for recreational purposes.Acts similiar to amphetamine and other stimulants.

Methcathinone(ephedrone) can be easily synthezied from ephedrine or pseudo ephedrine, by oxidation with kmno4.

ephedrone by Hard_Worker March 10, 2008

Ephemeral 

Lasting for a short period of time; typically one day.
Or
A short-lived experience.

The feeling was ephemeral.
The spring is ephemeral.
You have an ephemeral experience in life.

Ephemeral by ♥!Me!♥ April 6, 2015

ephemeralia 

Assorted objects that people tend to accumulate, like receipts and ticket stubs and tissues.

There was ephemeralia scattered all over the floor of her room.

ephemeralia by janine doe November 30, 2013

Ephemerabilia

Objects like groan tubes, bouncy balls and light-up wands you buy in novelty shops that seem great at the time but later you realise is just worthless shite.

Fred:...Why did I buy this Glowing Mickey Ears light up wand in Disneyworld again?
Lucas: Dude, I told you when you in the shop, that's totally just ephemerabilia.

Ephemerabilia by Rebsicle July 24, 2015

ephemera 

How some psycho girls think of boys: used only for a short time.

"Hi. I'm Caroline. I like that boy. I'll add him to my list of ephemeras."

ephemera by Andy MON September 7, 2007

ephemelous 

(adj.) The deep, shameless sense of satisfaction you get out of reading an FML (at FMyLife.com), possibly because FMLs give you hope that there are people out there whose life sucks more than yours.

(adv.) ephemelously

Today, I woke up in the morning to great ephemelous joy when I read the FML of a guy who sniffed his own underwear and had an instant hard-on. EFEMEL

ephemelous by nnn666 September 24, 2011