H.: (threateningly) Yeah, well, he won't get away with it much longer. He's gonna get his.
M.: Henry, that's the second time you've said that. You're not planning something, are you?
H.: Oh, I don't know. Maybe someone will tip off the IRS to take a careful look at his books. Maybe something else will happen. I don't know.
(Words and Phrases)
"he won't get away with it much longer" 彼はもうそれで(あんなひどい態度で)、そう長くはやっていけないだろう
"tip off the IRS to take a careful look that his books" 彼の帳簿をよく調べるように国税局に密告する(IRS :: Internal Revenue Service)