Trolls

Never give up. Everyone has the potential to be happy, and you shouldn't pin all your hopes for happiness on something outside yourself. It's important to be loved and appreciated for who you really are; you shouldn't have to change how you look/act to make someone interested in you. And having fun is great, but you can't just do what you want all the time -- you also have to be responsible and think about consequences. Friendship and loyalty are important. Some bodily function humor (notably, shiny trolls who shoot glitter out of their bottoms when they pass gas).

Frequent peril. The Bergens are scary looking (especially Chef); they threaten to eat the trolls, and they brandish knives and other cooking implements around them. Tense chase scenes and times when it looks like not all the trolls survive. Bergens invade the trolls' party and cause fear and panic, then capture many of them. Poppy encounters/dodges many hungry predators on her way to Bergentown. She, Branch, and their friends are chased by a big, vicious dog-like animal and have lots of other narrow escapes; sometimes it seems as though trolls have been eaten. Branch recalls a sad moment from his past, when he lost someone he loved. Chef treats Bridget very cruelly. In the end, it appears two bad-guy characters meet a fiery fate.

A few uses of "OMG" (also said as "oh my gah," with the ending of the word not clearly defined), plus "stupid" and insults like "dumpy diapers." Also slang like "oh, snap," "YOLO," and "solid burn."