go fishing—(U.S. sl., also: be on a fishing expedition) undertake a search for facts (especially using improper methods):
- When you’re involved in litigation, you’re almost inviting the other side to go fishing through your ancient records.
gone fishing—(U.S. sl.)
1. said of a person unaccountably absent from duty:
- President Bush hung out the “gone fishing” sign at the White House on Friday and headed for a birthday weekend.
2. be not in touch with the real world; have no idea what is going on:
- This is not the first time he has “gone fishing” in a big match. Even Liam Brady would have done better playing last night.