靠關係達成一件事 (to use personal connection so as to achieve something (literally: to pull the garment hem))
動詞Examples
你都係掹衫尾先參加到今次嘅會議。
nei5 dou1 hai6 mang1 saam1 mei5 sin1 caam1 gaa1 dou3 gam1 ci3 ge3 wui6 ji5.
Your strong personal connections are the only reason you can participate in this conference.