Onionboy 

Not to be confused with onion boy.
Onionboy a.k.a onision is how onision was called by leafyishere in his video "The onision rant".

Person 1: have you seen onionboy?
Person 2: who?
Person 1: Onision, thats how leafy called him.

Onionboy by XAngeled July 6, 2016

Onionboy 

The best onion boy. The best boy. The onion boy. He is onion boy. He will call anyone a whore.

Onionboy, get off the call!

Onionboy by Onion boy eggg March 13, 2020

onionbooty 

An ass that is so big it makes you cry like an onion

Dam that bitch go an Onionbooty my nig

onionbooty by Stefan O'Connor December 19, 2005

onion boy syndrome 

When a person ever so delicately implements the Onision™ technique of looking up and quoting word definitions into their argument.

Bob: Sandra, he's 14 you're a pedo.
Sandra: Actually Bob, pedophilia is the attraction to pre-pubescent children, which he is not.
Bob: Whatever, ephebophile. You've just got fucking onion boy syndrome.

onion boy syndrome by EzzieHime.jpg June 11, 2018

Onion Boy 

The main character in the book "The Adventures of Onion Boy". Created and Illustrated by Athena Mariah LaRue. Onion Boy is the Leader of a fictional Mutant Revolution.

Onion Boy would be listed under the genus: Allium Sapiens

Onion Boy by slimy snail January 27, 2007

OnionBomb 

The action of when white male ejaculates into your mouth spontaneously.

Jack OnionBomb'd me when we hooked up last night.

OnionBomb by JackIrving April 29, 2020