粤典 (words.hk)香港词
諗方法準備謀取一啲嘢,或設法對付某人 (to think of ways preparing to aim for something, or act against someone; literally: to beat idea)
動詞用例
你唔使對我打主意喇,一睇就知你有古惑啦!
Just save your scheming for someone else; I could see from the start that you intended to deceive me.