Oaf n. : Originally, an elf's child; a changeling left by fairies or goblins; hence, a deformed or foolish child; a simpleton; an idiot.

Example:
What does it mean to say someone is beached? like a beached Oaf perhaps?

Taxonomy
oaf, Merriam-Webster Online Dictionary, elf, Dictionary, webster, ish, Old English, Word Games, Webster Online Dictionary with audio pronunciations, Middle English, glossary, english, language, ESL, Inflected, oafs, Etymology, alteration.

Defination from the web:
oaf from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... See a map of "oaf" in the Visual Thesaurus. Pronunciation Symbols. Share this entry: Link to this page: Cite this page: Products. Premium Services. Company Info ...