Come back/down to earth (with a bang/bump)bring somebody (back) down to earth (with a bang/bump) British American phrase
To stop acting or living in a manner that is not realistic due to having experienced a very exciting time
Though enjoying the trip, being lost in a strange city for hours certainly brought her back to earth with a bump,
I was thrilled with joy because I had won the first prize that was a trip to Paris. However, when I realized that I had to pay for my own living cost, I came down to earth with a bang.
The verb "come/bring" should be conjugated according to its tense.
There is no clear information about the origin of this expression.
A problem or difficult circumstance
I'm short-sighted, so forgetting my glasses is a real hair in the butter for my sight.