Sibly 

To punt on an entire horse racing meeting but only ever achieve a second place result.

“Hey mate, you just just Sibly’d that race”.

Sibly by EpsumClowns June 3, 2022

robin sibly 

An amassing bat shit crazy girl who's helariously stunning and beautiful! She can make ANYONE lough even the most stuck up preppy girl in the world! She is the best friend anyone could ever have. She is a smart girl capable of anything the world throws at her!

Robin Sibly, born in April 2000. I looked up her name and nothing popped up, so i thought "hey! lets make robin apart of the dictionary!"

robin sibly by boardergirl_2000 December 16, 2013

Sillyism 

A religion founded by the prophet Maximilian Arthur Fosh

A: “I believe in Christianity so I’m a Christian, what religion do you believe in?”
B: “ I believe in Sillyism so I am a Silly Billy”

Sillyism by svrinx November 13, 2022

silly simulator 

the only game were you can get beat up constantly without getting mad

silly simulator

silly simulator by someone else thats not u March 4, 2021

Sillyamsburg 

A parodic term describing the ephemerality of trends, fashion, and culture in the Williamsburg neighborhood of Brooklyn, New York.

Billy: Hey Samatha, would you like to go see some socialist electro-pop in Bushwick tonight?

Samantha: Sorry, I can't. I'm already attending a craft beer tasting in Sillyamsburg.

Sillyamsburg by Gaylord_Black November 4, 2012

Younger sibling

A little pest who likes to burst into your room while your doing homework, or playing on your phone. They like to hit you, then like a little bitch, they tell your parents when you hit back. In other words...they are annoying. They are so annoying they make you feel like banging your head against the wall so hard you lose all your brain cells.

You: *on your phone*

Younger sibling: *bursting into your room and runs up to you* Hey!

You: Go away.

Younger sibling: No! *Slaps*

You: *Slaps back*

Younger sibling: ....MOooOOoOoM *ugly sobs*

You: GODDAMNIT *bangs head against the wall*

Younger sibling by Crippled and depressed March 29, 2019

National Slap Your Sibling Day 

A national holiday where you can slap your siblings! It’s a wonderful day.

“Hey, sister.”
“Hey, what’s up”
“Happy national slap your sibling day!”
“Wha-“
*slaps*

National Slap Your Sibling Day by yourveryownmother October 28, 2020