it describes when someone gives you a good impression, that you feel like you two are the same type of people, and you are fond of that person
Definitions (粵典–words.hk)
動詞
第一眼見到嘅時候有親切感,有好感 to one's liking
女朋友唔使好靚嘅,合眼緣就得㗎喇。
女朋友唔使好靓嘅,合眼缘就得㗎喇。
neoi5 pang4 jau5 m4 sai2 hou2 leng3 ge3, hap6 ngaan5 jyun4 zau6 dak1 gaa3 laa3. A girlfriend doesn't have to be very pretty. It's already fine if she's to her other half's liking.