partner in crime
idiomPart ofcrime
partner in crime — idiom
1. a friend who you regularly do things with, especially things that are slightly b
1.idiom
Definition
a friend who you regularly do things with, especially things that are slightly bad or mischievous
Example
Maya and her brother have been partners in crime since they were toddlers, always getting into trouble together.
The two old friends were partners in crime during their college years, sneaking out of the dormitory every weekend.