when you hear/see someone listing watching singing talking thinking about Justin Beiber at the same time that you are.
*both singing at same time*
Girl 1: "I need somebody to love"
Girl 2: "Never Say Never"
*both yelling*
Girl 1: Hey Bitch you Beiber Jackin!!!
Girl 2:What evs hoe I was singing first!!!
when you cum in 10 seconds inside a 20 year old girl groupie in a backstage bathroom after a concert
He Beibered her beaver hard and fast in the men's room...
a grand salutation including twirling you hair and molestation.
Did you just twirl your beiber at me?
When a song or other business extension is used by Justin Beiber, and subsequently ruins it.
Justin Beiber announces Dubstep track, therefore, ruining most dub step for some people, subsequently 'The Justin Beiber Effect'