Elmer Sglue is a student in Pokey Oaks Kindergarten. He has curly hair and wears thick glasses. He appeared in "Paste Makes Waste," where he became a giant monster and wanted revenge for everyone picking on him because he was eating glue. He befriended Buttercup at the end when she apologized for making fun of him.
- In "Speed Demon", three Elmer Sglue-like figures can be seen running from school after the bell rings.
- It's implied that Elmer has eyesight problems since his glasses are very thick.
- It is unknown how he returned to his human form after turning into a paste monster.
- His name is a pun on the glue brand Elmer's Glue.