nut spell 

When a person is really hyper and going crazy and says or does crazy random things

Mackenzie is in a nut spell again she'll be fine soon

nut spell by Free bird April 20, 2018

nut-shell 

cute & loving chimpmunk who loves to eat nuts! She likes football players! she loves to joke around and have fun!!!

morgan and dean love nut-shell!

nut-shell by M_lil_spickner November 16, 2006

Fit In Nut Shell (FINS) 

Girl who is conscious about her health, diet by maintaining sexy physique. She is fit without breaking the shell.

Eva - Look at her. She is damn hot and i couldn't get eyes off.
Dave - Hell Yeah, She is Fit In Nut Shell (FINS) and will be going forward.

Fit In Nut Shell (FINS) by Moulish Rated - R Punk November 23, 2014

Puberty in a Nut Shell

You might want to avoid shaving your pubic hair because when it grows back in, the skin may be irritated and itchy. Also, guys may think twice about shaving their chests, and girls should avoid shaving their faces because the stubble that grows back will look prickly and thicker, forcing you to shave over and over.

"Whats Puberty in a Nut Shell?"
"Puberty is a bitch dude."
"Ya my pubes are long as hell"

Puberty in a Nut Shell by Butthole Betty January 11, 2019

Nut-shell 

When you nut off a high place, such as a balcony, onto unsuspecting passer-bys beneath

Jack : " ew what just fell on my head?! bird shit???"
Matt : " no silly, it was a nut-shell"
Jake : " lets stop walking past james simpsons house, he keeps dropping nut-shells on us"

Nut-shell by Kat street March 8, 2022

Nut Shell-shock 

The act of beating it so hard, once you finish it is hard to concentrate on things other than what you were doing.

Person 1: Hey did you watch the game last night?
Person 2: Huh..? Sorry I'm in nut shell-shock right now.

Nut Shell-shock by TheGamingPop July 19, 2023