sillyness 

either a noun or an adjective.
expression of the rediculous-ness or an unfavorable aspect of a situation.

and sillyness.

"Awwk i lost my wallet... sillyness."

"Im gonna sillyness all over your face."

sillyness by silllyness December 3, 2009

what arbitrary silliness 

Bull Fucking Shit Respectively.

what arbitrary silliness

what arbitrary silliness by Duskman June 7, 2010

sillyest 

Person very fond of sillyness and does many silly things.

I really like being a dork and doing random funny things. I'm such a sillyest.

sillyest by IAMTHEMASTERMIND September 30, 2009

silliness 

silliness is like saying you like or love how silly someone is but putting it into a sentence you’d use silliness.

“ your silliness is my favorite thing about you “

silliness by Nati Potati January 6, 2019

sillyass

A crazy motherfucker who giggles a lot

the giggly boy is a sillyass

mom don't be such a sillyass

sillyass by That Dark Haired Chica December 31, 2003

Silliness 

When you are in class and you are supposed to be filling in the blanks for something like science, but instead you fill them in with the same word over and over again. e.g. Unicorn.

Silliness: the art of being silly

The Earth began 14 Unicorn years ago. The Unicorns then roamed the Unicorn for hundreds of years. Around Unicorn years ago the unicorns took over from the unicorns and the fish started to unicorn. Birds were next as they too unicorned, they went from unicorns to bigger unicorns to even bigger unicorns. The unicorns then ruined the Earth creating lots of unicorn which is damaging our solar unicorn.

Today, I used my extreme silliness to make biology more interesting.

Silliness by The Unicorn of Unicornacopia October 20, 2017

Sithyness

Possessing the qualities of a sith lord.

My avi on this game is uber sithyness, it's so evil!

Sithyness by Bronwenasaurus March 16, 2008