A toxic substance that, when ingested in large amounts, causes one to act out of the ordinary
Under the influence of Justin, he causes normally smart people to ignore the good things that are in front of them.
by ohsuchaheartbreaker April 17, 2010
Someone with absolutely no friends. May think he has friends, but he does not.
Girl - "Oh hey Justin what are you doing tonight?"

Justin - "Just chillin with my best friend the llama."

Girl - "The llama isn't your friend...you have no friends..."
by Rappinchamp December 12, 2010
An awesome guy with a majorly bloody dick, who is easily arroused by math homework. He enjoys creative underwear, playing guitar, and going through magical mysterious bags. He is the coolest ginger kid you will ever meet. Some would say he is "cute in an akward way", others just call him jibbly. I wouldnt trust him or Montey with a mothers credit card...He is funny, i like him! Schwang on Justin! Get to know him :)
Justin.. what are you doing over there, come on man what are you doin over there huh?

by meses November 19, 2010
When you shit in a brown paper bag, light it on fire, ring the doorbell and run, the person comes out side and steps on the shit.(: Justins also smelll like shit
Ew its justin
by suck my balls justin December 17, 2010
A guy with a 1 inch penis.
Guy: how far did you get inside her?

1-inch Penis Guy: Justin...
by supamans August 30, 2010
A guy who is good as a friend, but you don't want to get romantically involved with. It will lead to potential disaster.
"Hey, you and that guy seem close, why don't you all date?"

"I just don't feel like I should be more than friends with him, he seems like a Justin to me."
by t-Waff April 01, 2010
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