いっぽんやり

一本やり

表記・読み：一本槍・いっぽんやり

1. 1

   sticking to one thing (method, principle, objective, etc.); never deviating from; persisting with; focusing solely on; devotion to; single spear

   名詞noun, used as a suffixafter a nounidiomatic expression
2. 2

   one's sole talent; one's only forte

   名詞idiomatic expression