To tighten your belt means to spend less money than you did before because you have less money.
For example: I’ve had to tighten my belt since I took two months off work.
English for adults : Exam Guides for students: Lesson Plans for teachers
To tighten your belt means to spend less money than you did before because you have less money.
For example: I’ve had to tighten my belt since I took two months off work.