一脸懵逼

一臉懵逼
yīliǎnměngbī

alternative form of 一臉懵屄 /一脸懵屄 (yī liǎn měngbī)

Wiktionary

Entry Composition

1 一脸 yīliǎn one's whole face (being covered with)
2 懵逼 měngbī
  1. (dialect) stupefied
  2. dumbfounded