Gravity Falls/YMMV

Accidental Innuendo:The Liliputtians are a small group of creatures that control the balls in a mini golf course. Franz the Liliputtian tells Dipper and Mabel, "We control the balls!", which would have a different meaning if taken out of context.

Broken Aesop:"Boyz Crazy" — If you love someone, let them go into the woods with no survival skills, where they're sure to die.

Creepy Awesome: Bill Cipher is the embodiment of this trope

Crosses The Line Twice: Bill Treatment of Dipper's body after snatching it is incredibly awful but it's played for laughs