Can be used in multiple ways.
Look at the examples for usage.
Dismissal: Jeeez off.
Threat: I'll jeeez you up so bad, you'll wish I had never jeeezed you up so bad.
Anger: god damn motha fuckin jeeez!
Surprise: Jumpin jeeezers Jim Jam!
Sexual: Buff my jeeez.
Basically it can be used almost any way you want. Those are just some examples to cram in your nug bone to think about for a while until the jeeezness rises up within you. Sooner or later, you too, will be jeeezin all over the walls.