tighten your belt
idiomPart ofbelt
tighten your belt — idiom
1. to spend less money than before because your income or budget has gone down.
1.idiom
Definition
to spend less money than before because your income or budget has gone down.
Example
After Mateo lost his weekend job, the family had to tighten their belts.
Rising rent forced many small shops on the street to tighten their belts.