Bein an Oompa Loompa means that you share a fate with them. The fate of never ending labour that carries on until death.
You can also be "Oompa Loompa"-ed which means that one has been forced into his dire situation
Normally it is used in a humorous manner, mostly in a Videogame context. To mean that someone has totally outplayed and annihilated another person.
Other common spellings include "Oompa Loompa'ed" "Oompa Loompa-ed" "Oompa Loompaed"
A: What have you died to?
B: I have been "Oompa Loompa"-ed so fucking bad...
A: How's your Job?
B: I feel like a damn Oompa Loompa and might quit soon
A: lol, you are being an Oompa Loompa and you don't even notice
B: Man, don't be rude about me not wanting to quit my job