A person that may or may not be hot, but is the most attractive person in the set of people you work with so you lust after him/her.

When there is a good looking male or female at your job, that on the outside would not be so hot.

You can substitute "Work" with the name of your place of business... She's Coors hot or he's Walmart hot.

Work hot is used when one is at work and is very hot, they start to slurr and get lazy with there speech, so just say work hot to the the person next to them.

To be sick and still come to work. This is usually done to avoid having to unnessicarily use up a sick day.

Doing this tends to share your illness with the entire office.

From the biohazard term hot meaning an infectious agent or area, ie a hot agent or a hot zone.