describes a person who tries to act smart and always exaggerates the actual situation of the matter(s) or event(s) and/or often tells something which is over-the-top; all mouth and no trousers
Definitions (粵典–words.hk)
動詞
齋講唔做 to boast what one is going to do but never really put it into action
唔好指意佢呀,佢成日都係大隻講㗎咋。
唔好指意佢呀,佢成日都系大只讲㗎咋。
m4 hou2 zi2 ji3 keoi5 aa3, keoi5 seng4 jat6 dou1 hai6 daai6 zek3 gong2 gaa3 zaa3。 Don't rely on him; he only ever talks the talk, but never walks the walk.
近義詞
得個講字
參看
大隻廣
Definitions (Wiktionary)
verb, Cantonese
to be all talk and no action (syn.) 得把口