n. pl. 《口語》 実に長い間 (a very long time) (cf. coon's age, dog's age).🔗⭐🔉

n. pl. 《口語》 実に長い間 (a very long time) (cf. coon's age, dog's age).

研究社新英和大辞典 ページ 185400 での【a very long timecf. coon's age, dog's age】単語。