come down to earth

come down to earth

 
1. Lit. to arrive on earth from above. An angel came down to earth and made an announcement.
2. Fig. to become realistic; to become alert to what is going on around one. You have a fit of enthusiasm, John, but you must come down to earth. We can't possibly afford any of your suggestions.
See also: come, down, earth

come (back) down to earth (with a bang/bump/jolt)

to have to start dealing with the unpleasant or boring things that happen every day after a period of excitement and enjoyment We came down to earth with a bump when we got back from our holidays to find we had a burst pipe.
See also: come, down, earth