The Grim Adventures of Billy and Mandy (2001)

Episode Overview

When Irwin fails to pick up his phone, and with Billy's parents unaccounted for and Mandy ominously suggesting she wants "Billy for dinner," Billy and Grim grow suspicious that Mandy has turned into a cannibal, devouring Billy's loved ones. In search of evidence, they stumble upon tiki decorations and party setups in Mandy's backyard. However, they soon discover it’s merely a surprise birthday party for Billy. The situation takes a bizarre turn when Mandy unexpectedly burps up Irwin’s glasses, confirming their wild suspicions were unfounded.