「打籠通 / 打龍通」

(pos:動詞)(sim:扯貓尾)
<explanation>
yue:串謀做壞事
eng:to collaborate in a scheme; to conspire
<eg>
yue:班友奸到死，幾個人一路打牌一路係咁打聾通，分明呃錢。 (baan1 jau2 gaan1 dou3 sei2, gei2 go3 jan2 jat1 lou6 daa2 paai2 jat1 lou6 hai6 gam2 daa2 lung4 tung1, fan1 ming4 ngaak1 cin2.)
eng:Those guys are so crooked. They kept giving each other secret signals while playing mahjong. It's pretty clear they were trying to cheat others out of their money.
<eg>
yue:佢兩個打同通，周圍呃人錢。 (keoi5 loeng5 go3 daa2 tung4 tung1, zau1 wai4 ngaak1 jan4 cin2.)
eng:They conspired to cheat others out of their money.