拍拍脑袋算一个

Traditional (Taiwan): 拍拍腦袋算一個

pāipainǎodaisuànyīgè ㄆㄞ ˙ㄆㄞ ㄋㄠˇ ˙ㄉㄞ ㄙㄨㄢˋ ㄧ ㄍㄜˋ

    • to pick people casually without proper screening

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
pat your head and count one
Meaning
Picking people casually without proper screening. Critical.

Sources