Leonard 

a german boy born in June.

Thinks he's really hot and gets every girl but in reality gets none. Really loud, annoying and unnecessary and no one likes him. Can easily get very aggressive so you should not talk to him.

Girl: hey leo can you help me with my homework?

Leonard : No leave me alone! are you too dumb?

Girl: Fine.... (leaves)

Leonard : WHY ARE YOU LEAVING?!!

Leonard by MIKAISAWESOME June 8, 2016

Leonard 

lame, not cool.

a phrase often used in Cornwall, Ontario, Canada

Dude! you are from Cornwall?? Damn that's leonard!

Leonard by danmna0627 March 19, 2011

Leonard 

Leonard will be Someone that you like the first time meeting him but he becomes more of poseur. And he will be trying to be so much like you and your friends. Also, he will annoy everyone and everyone will hate him at the end of a school year.

*Oh look its Leonard*

Leonard by yettusdeletus May 13, 2019

Leonard 

A Simpleton, one who is not fully aware of the goings on of the world, aka a nancy-boy, in general it is someone who isn't "cool" by definition

Simon is a serious leonard, honestly he's king of the lenny's

Leonard by King-of-the-leonards February 6, 2009

Leonard 

A little bitch who is a poser and follows his friends around. He can usually be seen behind a group of friends saying random memes for no reason. But even worst he is gay.

Sayan fuck Leonard why do you need to follow me!

Leonard by Henry bUcKeT May 13, 2019

Leonard 

A girl that acts like a slut but has had sex with less than 10 people.

That bitch jeff fucked is a leonard, but didnt know how to get butt sex

Leonard by Matty Cee August 10, 2006

Leonard 

Leonard’s are usually a fat scamming and betraying pieces of shit. They scam their friends and snitch on their friends. They beat their family members and have a drug dealer family member. And he’s addicted to fortnite.

JJ- Leonard scammed me and swore on his family’s life he would pay me back.

Group- wow dude

Leonard by No u hdksisbdjddkjs February 18, 2020