Examples.

I have used the zomb- words a few times in tweets:

♠I'm zombing out in front of the computer, so I think I should go to bed. I'll decide what to do with purple wool flannel tomorrow.

♠I'm zombing like crazy. I guess it's naptime.

♠Why am I sitting here refreshing things? Is it because I'm too zomby to do anything, but not zomby enough to fall asleep?

♠I should NOT take photos when I feel this zomby. Unless, of course, I want the photos to be super creepy.

Apparently I associate being like a zombie with being tired.