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The love between Jared Leto and Shannon Leto of rock band Thirty Seconds To Mars in fanfiction.

Derived from the combination of their last name, "Leto" and the word "incest."
Warning: This fanfic contains slash, swearing, and letocest!
letocest by Michelle Nelson January 19, 2007
Related Words
letzo • Leto • letgo • letsos • Lenzo • lethologica • letourneau • Letto • leszoi • Letho

Lunchbox Letdown 

A frustrating situation when after feeding a guy booze and listening to him talk about himself all night at the bar, you get him home and as you take off his pants you're dissapointed to find that he has a teeny tiny penis.
Steve: "I thought I'd picked up a good fuck for the night then I suffered Lunchbox Letdown."

Kyle: "I hate that!"

Steve: "It was tiny AND crooked, fucksakes."
Lunchbox Letdown by jdiddy77 February 6, 2012
Love and passion personified into a single human being. When compassion, intelligence, wit, empathy, warmth, sensuality, fire, creativity, vision, magic, and a small amount of unicorn dust is combined into a single perfect soul.
I've met the man I'm going to marry. He's everything to me and the world's most perfect man. He's my Leto.
Leto by ecams November 22, 2010

Shannon Leto

The most kickass drummer ever of the band, 30 Seconds to Mars. And oh yeah...he's hot. Also the older brother of Jared Leto.
Shannon Leto is amazing. If you disagree, whatev.
Shannon Leto by Liann September 4, 2008

Lunchbag Letdown 

A lunchbag letdown occurs when something you had been looking forward to turns out to be far worse than originally anticipated.

The term originates in the lunchroom (be it school or office or otherwise) where after a long hard day someone sits down with their lunchbag hoping for something tasty. Instead they find something unappetizing, whether it be the wrong lunch, it's moldy, it's cold, or any other multitude of problems.

After such a situation, it can be said that your lunchbag was indeed a let down.
Tom: I can't wait for lunch *pulls out lunchbag*

Jim: What do you got?

Tom: Aw man! Tunafish? I HATE Tunafish!

Jim: What a lunchbag letdown.
Lunchbag Letdown by Piemanthe3rd August 17, 2010
She’s that one shy ass girl that you don’t talk to, but when you get to know her...dang she fucking crazy, she would honestly beat your ass if you talk shit about her, sarcastic and funny, she also has light brown eyes
Letzy is funny
LETZY by krazzyygirl November 12, 2018
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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