seagull v. to hang back and await an opportunity to benefit from desirable circumstances found or created by other people. (source: Double-Tongued Dictionary)
Further reading
One secret to writing well is … there is no secret! There’s no substitute for simply sitting down day after day to practice the craft and learn from your mistakes. Plus, childhood mixups around word definitions can lead to some funny stories...
Madison in Wilmington, North Carolina, says that whenever her family was about to leave the house, her grandfather would tell them to take Churchill’s advice, which they all understood to be a reminder to use the bathroom before setting out...