Chunk

 Chunk (voiced by Jack Angel) is an orange muscular rock monster toy who appears in Disney/Pixar's 2010 film Toy Story 3. He is one of Lotso's henchmen, but in the end he is reformed.

Personality
Chunk welcomes the toys to Sunnyside, but later helps Lotso and Buzz (after he is switched to "Demo mode) imprison them. He is eventually convinced of Lotso's evil and reforms. In the credits, he is seen sharing the abuse the younger children dish out with Twitch in a tag-team match.

Toy Story 3
Chunk is a rock-like toy from Sunnyside Daycare. Chunk has protective shoulder spikes, poseable oversized limbs, and fists ready to smash anyone who gets in his way. He also has a hidden head spike which when pressed down on switches Chunk's facial expression from friendly to fierce. He starts out as one of Lotso's henchmen, but in the end is reformed.

In the end credits, when Sunnyside is turned from a prison into a paradise by Barbie and Ken (who are now the new leaders of Sunnyside after Lotso's defeat), he is shown experiencing a rough playtime with the toddlers in the Caterpillar Room, being hammered to the floor and thrown across the room. After landing back under a shelf, where Twitch is waiting for his turn, Chunk tags Twitch so Twitch can substitute for Chunk while Chunk rests under the shelf with Ken and Barbie. When the Sunnyside toys have a "beach party" at the sandbox, Chunk is shown playing beach volleyball with Jack-in-the-Box as they bounce a ball back and forth between each other's teams.

Toy Description
From Official Website:


 * "Chunk will rock your world! This gargantuan creature sports protective shoulder spikes, while his ferocious fists are ready to smash whatever enemy gets in his way. Chunk's oversized limbs are fully posable, making him ready for hours of imaginative fun. As an added bonus, the press of a hidden head spike will spin Chunk's expression from friendly to fierce! No batteries necessary."

Trivia

 * Although one of the strongest toys on Lotso's team, he's also the stupidest. When commenting on Buzz's gullibleness during the gambling scene, he tries to say "He's not the sharpest knife in the drawer", but either he doesn't know what a drawer is or he forgot, instead saying, "the place where they keep the knives", causing Ken to reply, "neither are you, Chunk!"
 * He resembles the Stone Golem from Skylanders.