In the military, if you’ve lost the bubble, then you can’t find your bearings. The term first referred to calibrating the position of aircraft and submarines. • The phrase the coast is clear may originate in watching for invaders...
If the car you bought is a lemon, it’s defective. This negative use of lemon derives from the tart taste of this fruit, which first inspired an association with a sourpuss, then a generally disappointing person, and then finally a similarly...