1 It's not official yet so keep mum.

2 I'm trying to keep Mum sweet so that she'll lend me the car.

3 Please will everyone keep mum about Saturday. We want to give them a real surprise.

4 So, darling, keep mum about where we are.

5 In politics, as in life, truth hurts.Better to keep mum.

6 In politics, as in life, truth hurts.Better to keep mum. Digging up dirt is the media's job.

7 " Yes -- but you keep mum.

8 Hucky,[] you sure you can keep mum?

9 Keep mum about our surprise party.

10 I reckon we're safe as long as we keep mum.

11 Huck Finn and Tom Sawyer swears they will keep mum about This and They wish They may Drop down dead in Their Tracks if They ever Tell and Rot.

12 " Tom, we got to keep mum. You know that.

13 That obviously includes me, so your mum's got to keep mum, chick.