Someone who is consistently incorrect, ineffective, clueless, or inadequate on the job.
Also applies to improper wear, care or use of the uniform.
The term indicates that it would appear that the individual had been chewed on and spit back out.
"Man, did you see Deputy Weenie's shirt? Looks like he slept in that thing. He is so Ate-Up.
by Andy Schmidt on Jan 31, 2013