一頭半個月 (jat1 tau4 bun3 go3 jyut6) — approximately half of a lunar cycle in Cantonese
jatˉ¹一tauˎ₄頭bun˗₃半go˗₃個jyutˍ₆月简 一头半个月
Mandarin Pinyin: yi1 tou2 ban4 ge5 yue4
Meaning of 一頭半個月
nounapproximately half of a lunar cycle
nounto describe a period of time around a month or half a month