this is a term made by and used by the unpopular criminal 12 year old youtuber "ViktorTheVyonder2011" which means that you are giving him attention as he is "trolling" you a.k.a harrassment
oh ye he does this shit every time you ask him a question or whatever
internet user: why are you being so rude?
viktor (on one of his 192 alt accounts): Shut Up Ur Just A Troll Feeder
a troll that feeds off of the trolls that troll the trolls
Go back to your little hole, you bottom feeder troll.
He/She is a bottom feeder troll.