sillipeter 

A sillipeter is a unit of measurement when you try to use a metric tape in a standard world.

Boss: How large is that opening?
Employee: IDK... My tape measure only has sillipeters on it.

sillipeter by DV8DUG March 14, 2025

millipeter

the term used for a male with a penis that is exactly one millimeter in length

"hey arnold, wanna sit on my millipeter?"

millipeter by RICHARD CAMPOS May 15, 2004

Sillister 

Noun. One who is being extremely silly.

Why did you pull your pants down? You're a sillister.

Sillister by Frankenstein Smells June 30, 2010

sillmetery 

A windowsill with dead bugs laying on it. From sill (cem)etery.

Go get the vacuum and clean off the sillmetery.

sillmetery by smuck May 14, 2005

silliesteristeristeristerististist 

the silliest person of them all. also the silliest of the silliest.

1) owen, you are the silliesteristeristeristerististist.
2) i love you the most silliesteristeristeristerististist.
3) in a text convo you can have a silly competition: A: silly B: silly goose A: sillyhead A: silliesteristeristeristerististist

silliesteristeristeristerististist by saladbar082804 December 7, 2020

Smillimeters 

1. Millimeters (mispronounced)

2. Smile (mispronounced)

"That lizard was fifty smillimeters long."

"You mean millimeters."

"I meant smiles."

Smillimeters by SubtleSubterfuge December 25, 2008

Sillameter 

The device used to measure an amount of silliness.

We must get out the sillameter to show her how silly she really is!!

Sillameter by chicklikeslickz September 22, 2019