overdone politeness; feigned politeness
Rare yojijukugo for excessive or insincere politeness; often used critically. Compare with the more common 馬鹿丁寧.
See also: バカ丁寧
His overdone politeness actually made me angry.
あの店員の馬鹿慇懃な応対は、わざとらしく感じた。
That clerk's feigned politeness felt contrived.
More common synonym with the same meaning of excessive or feigned politeness.
Compound of 馬鹿 (foolish) and 慇懃 (politeness), literally 'foolish politeness'. The exact historical derivation is uncertain, but the term is a rare yojijukugo.