Dictionary / Vocabulary / 隅に置けない
すみにおけない
witty and knowing; not to be underestimated; smooth operator
Also written 隅におけない、すみに置けない
彼女は妻？あなたも隅に置けないわねえ。
She's your wife? There's more to you than meets the eye.
あなただってなかなか隅に置けないって噂があるけど。
I hear that you yourself are quite the smooth operator.