Dictionary / Vocabulary / ツーと言えばカー
ツーといえばカー · also つうといえばかあ
quick to take a hint; very responsive; quick on the uptake
Also written つうと言えばかあ
彼とはツーと言えばカーの仲だよ。以心伝心の仲とでも言っておこう。
He and I have a near-telepathic understanding of each other. No sooner does one of us say something than the other is already responding.