here comes trouble
cliché Used humorously to signal the arrival or approach of someone, teasingly implying that they are troublesome or mischievous. A: "Hi, Grandpa!" B: "Uh oh, here comes trouble! What are you up to today, Billy?" A: "Look out, here comes trouble! Ready to throw another meeting into chaos today?" B: "Har, har. I had some very valid points to bring up yesterday, thank you very much." Well, here comes trouble. What do you need from me now, Mary?
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