Someone who takes up your time with pointless explanations or anecdotes.
When asking a collegue a yes/no question, he replied with a 45 minute response. Not only that but he sent a follow up email later that day and when I didn't reply once again accosted me with with his response (which still didn't answer the question). My collegue is a time thief as he took more than an hour of my time.
1. one who takes an extra 15 minutes for their lunch. every day.
2. a person (or persons) who comes back late from meetings even though they were round the corner and the meeting was cancelled.
theres a guy in my office who takes the fucking piss constantly. the other day he went to meet a client in the morning and didnt come back until the afternoon with some shyte excuse about train delays and the food taking 'ages'. the fucking time thief.