you never know: You say you never know when you mean that it is possible that something might happen although it seems very unlikely:Examples of YOU NEVER KNOW Because you never know when you’re going to get an urge to knit in a dark place. You never know who’s going to show up on the…

on the whole: in general, in most ways (also: by and large) Examples of ON THE WHOLE He is, on the whole, a good student. Rents and occupancy rates in commercial real estate remain healthy on the whole.

to slow down: to go, or cause to go, more slowly Examples of TO SLOW DOWN – Your best approach is to slow down and allow yourself extra time for everything.– You’re eating too fast to digest your food well. Slow down!

to stop by: to visit or stop somewhere briefly in order to do something Examples of TO STOP BY   Stop by and learn how you might be able to make a difference for your neighbors. If we stop by the house at dinnertime, Mom says she’s already eaten and is full.

to blow up: to inflate, to fill with air; to explode, to destroy (or be destroyed) by explosion Examples of TO BLOW UP Linda must have been pretty angry to blow up at you like that. A storm blew up off the east coast.

to drop out of: to stop attending; to withdraw fromThis idiom can be made into the noun form dropout. Examples of TO DROP OUT OF Your article notes that many students drop out of school because they are bored. They were also less likely to drop out of university or fail to obtain a degree.