When someone (usually a boss) walks around in front of your desk all slow and quiet without saying anything, either because they're afraid to interrupt you or they want to catch you using company resources for personal reasons.
from the maker of the hit single 'chanaynay', wraiths originates from the artist 'wewantwraiths' meaning we want wealth or money.
you could further use this as a noun by saying 'wraither', meaning your a 'go getter' or a 'money man/woman/anything inbetween'.