Blow the Whistle 揭发,告发,检举

B：Great. Bluestar was at 17 1/4 when I left the office, up from 15. Might spin up 18 by the bell.

G：Teldar’s shooting up. Did you buy any for yourself?

I bet you were on the phone two minutes after you got out of my office.

B：No, sir, that wouldn’t have been legal.

G：Sure. Relax, pal. No one’s gonna blow a whistle on you.

Is that legal? Just put that in my account.