In Scottish Dialect and Scots literature, “fou” can describe something filled to capacity, but it often refers humorously or plainly to a person who has had too much alcohol. The word is a Dialect form of “full” and may suggest both physical fullness and drunkenness. Poets use it to give speech a distinctly Scottish sound, establish regional setting, or create comic effect.

“Fou” is associated especially with Scots and Scottish English, though it may appear in poems imitating Scottish Dialect. It derives from an older pronunciation and spelling of “full.” Depending on context, “fou” may simply mean “full,” as in “a fou cup,” but when applied to a person it usually means “drunk.” Related Scots words include “blin’ fou,” meaning extremely drunk, literally “blind drunk.” Do not assume every Dialect spelling is informal or incorrect: poets may use words such as “fou” deliberately for sound, rhythm, regional identity, and character.