Slenderoni 

A long, small in circumfrence male genital. Somewhat resembling a pencil.

Who drew that slenderoni on the back of my car?!
Someone told me I was a needledick, I corrected them and told em I just had a slenderoni.

Slenderoni by Jooshtin April 25, 2006

Slenderbone 

a fictional story about how the critically acclaimed slender man goes around raping college girls. My girlfriend just said that he was totally not raping them, just taking their virginity. Now she is trying to defend slenderbone. Totally weird and with some smutty lesbian sex scenes in it too.

Yea, it was weird..

"Did you read Slenderbone yet?"
"Totally, not worth it"

Slenderbone by arogs December 22, 2012

Slenderboi

When you're looking for Slenderman, but you're about to shit your pants in fear, so you try to lighten the mood by calling him this name (which he finds quite insulting) and saying it in a high pitched and funny voice. When attempting to find Slenderman, it is yet to be proven if this will increase your chances of success in finding him, but it will make your twitch viewers piss themselves with laughter if you say it with enough pathetic fear in your tone.

Slenderboiiiiiii! I know you're around here somewhereeee! i'll promise not to cry too much when I find you if you come out and show yourself! SLENDERBOIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII!!!

Slenderboi by Slenderboi December 23, 2017

slendering 

A form of dieting in which the end goal is to look like Slenderman.

My slendering is going great!

slendering by Saruman's Army February 5, 2015

slenderpais 

slenderpais is pais but slednerderman and tall thin suit tie white

sex
ca:slenderpais

slenderpais by TheWalkingClem November 13, 2021

Slenderini 

A term used to describe a perfect vagina. Perfectly shaped and curved like a porn star. No defects at all. Tight and clean.

Person 1: Ew my vagina looks so jacked up

Person 2: Go to the plastic surgeon and get a perfect porn star Slenderini

Slenderini by TripleThreatXXX July 5, 2009

sleeperoni 

A funny way to say "sleep".

stop sleeperoni and gtfo

sleeperoni by waddupppppp December 11, 2017