also: あほうのひとつおぼえ
a fool's one trick; one who repeats the same thing
Derogatory set phrase describing someone who keeps repeating the same limited knowledge or action, like a one-trick pony. Often used critically when someone harps on a single point or method.
See also: 馬鹿の一つ覚え
He keeps telling the same story like a broken record.
That strategy again? You're a one-trick pony.
Synonymous expression using 馬鹿 instead of アホ; both are derogatory and interchangeable, with アホ being more common in Kansai dialect but widely understood.
Common katakana spelling for アホ, often used in casual or emphatic contexts.
Hiragana spelling; equally natural in informal writing.
Rare kanji form; it is rarely used.
Search-only variant with historical reading あほう; not standard in modern usage.
A set phrase combining アホ (fool) with 一つ覚え (one thing learned). The exact origin is uncertain, but it likely arose as a colloquial, derogatory metaphor for someone who can only repeat a single piece of knowledge.