More than almost anything, I would like Lady Gaga to clam up for a while.

FORBES: Dear Justin Timberlake and Lady Gaga: Please don't make me choose

Do we really want employees to clam up, in fear of future liability, instead of discussing their concerns?

FORBES: Justice Dept.'s S&P Suit Long On Chatter, Short On Substance

If you tend to clam up in social settings, try having a few topics and answers ready to discuss.

FORBES: Rookie Mistakes: 5 Extremes to Avoid at Work

But if users realise how their data are used, they may clam up.

ECONOMIST: Making sense of a torrent of tweets

Living near arctic waters, its bivalves clam up for four-to-six months each year, making the oyster's muscles bigger and meat sweeter.

WSJ: New Dishes Make Waves at Belgium's Seafood Showdown

And it's hardly unusual for pro coaches to clam up in an attempt to control what's said or speculated about their teams.

WSJ: Tortorella Press Conference Etiquette 101

They would clam up a bit when you asked what else the opposition could do to get things to change, but the meetings were always useful.

ECONOMIST: Our online news editor finds the opposition in disarray

But that proved hard to verify on either end when the fellow (he's the one wearing the red tie, on his ever-handy cell phone) decided to clam up.

FORBES: Magazine Article

While indulging in the perennial teenage pastime of hanging out, Mr. Loughner would suddenly embark on odd discourses "he didn't make sense, " Mr. Osler said and then just as suddenly clam up.

WSJ: Loughner's Prior Behavior Pointed to Signs of Imbalance

The American restaurant dishes up comfort food like mac and cheese and a classic New England clam chowder.

BBC: Business trip: Boston