不知凡幾 (bat1 zi1 faan4 gei2) — can't tell how many there are - there are numerous similar cases in Cantonese
batˉ¹不ziˉ¹知faanˎ₄凡geiˊ²幾简 不知凡几
Mandarin Pinyin: bu4 zhi1 fan2 ji3
Meaning of 不知凡幾
nouncan't tell how many there are - there are numerous similar cases