身みの程ほど知しらず

expression, noun which may take the genitive case particle 'no', na-adjective, noun

not knowing one's place; presumptuous; overreaching

Describes someone who acts above their station, forgets their limits, or is arrogantly unaware of their own social position. Often used critically.

• 彼かれは身みの程ほど知しらずにも社しゃ長ちょうに直ちょく接せつ反はん論ろんした。

  He presumptuously argued directly with the company president.

• 身みの程ほど知しらずな要よう求きゅうをするな。

  Don't make overreaching demands.