1. Another person explodes of anger, right in your face.
2. When you're really, really bored of something, or just bored in general.
A variation of sheesh is geez
2. Sheesh, this is so boring.
Results of a sheesh call:
1. Several guys makeing a mad dash in direction of the "sheesh" to get a look
2. Your boss becomeing upset when she finds out what it means.
*footnote: it is an obligation to cover your boys so they can all get there fair share of a look at the sheesh