粵典 (words.hk)香港詞
形容埋身肉搏、激烈打鬥。亦引申指兩人之間激烈性交。 (to start of fight, to get into real deal; originate from cricket (gryllidae) fighting, when two crickets fight closely and violently, they will open their mouth and bite each other with teeth. The term then extended to mean having sex with someone vigorously.)
動詞用例
佢兩個嘈咗幾日，今朝終於埋牙打鑊甘。
keoi5 loeng5 go3 cou4 zo2 gei2 jat6, gam1 ziu1 zung1 jyu1 maai4 ngaa4 daa2 wok6 gam1.
They have argued for several days already, this morning they finally fought violently.