From Longman Dictionary of Contemporary Englishone thing leads to anotherone thing leads to anotherused to explain how a series of events caused something to happen without giving any details One thing led to another and, before I knew it, I had invited her family to stay. → thing
Examples from the Corpus
one thing leads to another• I know that and I do understand why, but one thing leads to another, you know how it is.• But one thing leads to another, and Sister Helen finds herself challenged to put her beliefs on the line.• You can be sure one thing leads to another. 