門口狗 (mun4 hau2 gau2) — by extension, a cowardly loudmouth who only acts fierce on his own turf in Cantonese
munˎ₄門hauˊ²口gauˊ²狗简 门口狗
Mandarin Pinyin: men2 kou3 gou3
Meaning of 門口狗
nounby extension, a cowardly loudmouth who only acts fierce on his own turf
nouna watchdog (whose "bark is worse than his bite" as he never leaves the entrance of the house)
nounwatchdog; guard dog