安請合い

やすうけあい【安請合い】

～する be too ready to promise [make a promise]; promise [make a promise] without due consideration; make [give] a rash promise; undertake 《a task》 light-heartedly.

●安請合いをする癖がある have a habit of making promises too readily.

●安請合いはできません. I have to think (twice) before I accept your terms.