To get over excited over something.

Literally everyone, ever. Including the writer of this definition.

To express suprise, much like ohmygawd. Formed by combining "oh", "my", and "jesus". This is the illigitamate son of ohmygawd who will reincarnate later or somthing.

To be used when something is amazing/shocking to emphasise how you feel. It is not the same as Oh My God which would be a bigger deal, and really, doesn't sound as good. Can also be shortened to OMJ.