LOSTalgia 

The feeling of emptiness that follows the finale of the ABC series "LOST". Symptoms include using characters as your Facebook avatar for no reason, playing 4-8-15-16-23-42 on your weekly lottery tickets, eating imaginary peanut butter out of empty jars, employing phrases like "This is my destiny!" and "See ya in another life, brotha" in daily conversation - often with bad Scottish accents and out of context - and creating Urban Dictionary definitions for "LOSTalgia" as a means of coping with the loss.

Friend#1: "What's that you're listening to?"

Friend #2: "Geronimo Jackson."

Friend #1: "Feeling the LOSTalgia again, huh?"

Friend #2: (nods....cries a little) "

Friend# 1: ".....You really need to get a girlfriend."

Friend #2 (suddenly angry): "Do you know badly I want to kill you?"

Friend #1: "Uh...yeah....I'm gonna go now. Don't stay up too late."

Friend#2: "Don't tell me what I can't do!"

Friend #1: (walks away without another word)

Friend #2: (calls after him) We have to go back!

LOSTalgia by big_baggins June 3, 2010

Lostalgia 

To be nostalgic for a time one has never known, such as times from before one's own birth.

The pictures of flappers at a speakeasy left me with a sense of lostalgia.

Lostalgia by AgentColdShadow October 25, 2018

lostalgia 

the sensation that fills you when you see someone you were once immensely close to who is now a complete stranger - a person you once shared everything with, who knew you better than you knew yourself, who still holds what were once or may still be your deepest darkest fears and secrets, who only holds complete knowledge of a you that no longer exists; the feeling is all encompassing yet insignificant at the same time as you subconsciously relive all the experiences and memories you have with this person and you are reminded of all that they knew, or may still know, about you all in the span of both an instant and an eternity as you are filled with recognition and unfamiliarity of the person you've caught a glimpse of, who you also only know a non existent version of but have kept your secrets regardless as you have kept theirs and a connection has culminated from this unspoken agreement with a complete stranger

I saw my ex the other day and I felt so much lostalgia.

lostalgia by 1304 October 8, 2017

lostralia 

A place where things that are lost are located.

FUCK! My measuring cup, panties, & nasal spray must be in Lostralia! I've looked in the 5 Special places I keep Important stuff & none of it's there!

lostralia by Starchylde January 25, 2015

nostalgia high 

n. A sustained level of euphoria induced by recalling events or listening to music that remind oneself of past experiences.

Man, I got such a great nostalgia high listening to this Third Eye Blind Album last night.

nostalgia high by aguthrie October 5, 2009

Nostalgia Nut 

When you're jerking off to porn and realize you've seen the video before leading to you remembering the time you blew your load to it.

"Whoa..."

"What's wrong Neo?"

"I think I jerked it to this porno when I was younger."

"You remember jacking off to it?"

"Yea...what a nostalgia nut."

"Sick dude, let's blow each other again."

Nostalgia Nut by ThisIsMatthewCastro June 21, 2018

Nostalgia

The remebrance of a good time or event that makes you happy.
remembring the past.

1. Atari makes me feel nostalgia. i remember playing it when i was only 7 years old!
2. i remember that! good times...

Nostalgia by jatworks July 19, 2013