cheek up to

上級 (C1) informal

To be rude and overly confident directly to someone — usually someone older or more important than you.

"The boy was sent out of class for cheeking up to his history teacher."

関連フレーズ

cheek it out cheek it through cheek up

"up to" を含むフレーズ

add up to bring up to brush up to buck up to chalk up to come up to cosy up to cozy up to
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