An awkward, irritating co-worker that creeps you out during lunch. The lunch troll typically preys on pretty girls in the company cafeteria or break room. It may try to strike up an unwanted conversation with you, sit at your table uninvited, stare at you for long periods of time, or ask you on a date.
Mariah: I was getting coffee this morning and I turned around and saw lunch troll standing in the corner staring at me... eeew!
Beckie: That's not bad, I was in the cafeteria microwaving food and it came up and asked me what I did last night... *creepy*
Me: I was telling my buddies about this hot girl I just met and lunch troll sat down and started asking strange questions about her... *uncomfortable*