Is an exclamation upon the sight of Jesus from Nasareth, known to Christians as Jesus Christ, riding a bicycle, bike, motorcycle, chopper or other similar means of transport. The exclamation generally indicates surprise or shock and additionally (depending on the speaker's religious views and attitude towards bikes) happiness, hope, uncertainty, frustration or anger.

An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.

an exclaimation made when something has shocked a person very much

(Exclamation)

1. An outburst of anger or frustration that the wankers (q.v.) are once again "getting on your tits" through their incompetence.

Used by IT support staff to describe the feelings of loss of temper towards "users"; when once again, they've fucked up the system.

2. An outburst of shock at the prospect of immenent death, injury or pain.

To show surprise at anything in a similiar manner to 'Jesus Christ'
This can be used in nearly any situation