an extravagant, exaggerated statement or speech not intended to be taken literally
Definitions (粵典–words.hk)
形容詞
誇張;過於理想 to exaggerate; to bluff; to give a very idealistic picture
阿強講就講到天花龍鳳,做出嚟都係不外如是。
阿强讲就讲到天花龙凤,做出嚟都系不外如是。
aa3 keung4 gong2 zau6 gong2 dou3 tin1 faa1 lung4 fung6, zou6 ceot1 lai4 dou1 hai6 bat1 ngoi6 jyu4 si6. Ah-keung always bluffs, but in reality he's not as good as he says he is.
Definitions (Wiktionary)
phrase, Cantonese, idiomatic
wild boast about something; extravagant embellishments; hype