Shut up and squat. A variation on the famed 'Keep clam!' of Ivor's Acres of Clams in Seattle, Washington. Problem is, it sounds like a back-formation for 'clam up', which it is not, sort of.
You didn't lose your billfold. Look through the car. You'll find it. Just shut up and clam down.
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."