This sentence in Spanish means something like, hey, this person, whenever he/she sees me, she picks on me, has me doing jobs I don't' like, looks at me in a bad way....it can mean any of these.
In the dictionary we have this entrance:
2. To file the personal (persona); to record (dato).
Le tenemos fichado -> we have his record
So, as a colloquial saying it is: we have your record, so we know your weakness
I don't' even know how to explain this better. Let's see if Lazarus gets here.
I wonder if this saying is used in other countries and...
can you think of a nice translation'