ひとつおぼえ

一つ覚え

表記・読み：ひとつ覚え・１つ覚え・ひとつおぼえ

1. 1

   knowing only one thing (and repeating it often); saying the only thing one knows (at every opportunity); repeating the only thing one knows

   名詞nouns which may take the genitive case particle 'no'