ELMO \el' moh\ n.1. ('00) abbr. Easy Little Math Olympiad, Ex-experimental Lincoln Math Olympiad, etc.
2. ('00) A cute, fuzzy, lovable, red Sesame Street character.
3. ('02) abbr. Extremely Last-Minute Olympiad.
Thanks to Daniel Kane, Gabriel Carroll, Alison Miller, and Anders Kaseorg for organizing this dictionary, and everyone else who contributed.