more than one bargained for

idiomPart ofbargain

more than one bargained for — idiom

1. more trouble, work, or difficulty than someone expected when they started.

1.idiom
Definition

more trouble, work, or difficulty than someone expected when they started.

Example

When Mateo agreed to walk three dogs, he got more than he bargained for.

The new manager got more than he bargained for on his very first morning.