Troll 2. End of discussion.
This is a movie so bad that I am actually proud to own a copy of it on DVD because there cannot be many around. Combo disc with Troll.
There's a scene in the movie where the little boy has discovered the truth about Nilbog (Goblin backwards) and in order to prevent his family from eating poisoned food he jumps up onto the dinner table and unzips his pants to pee on the food.