peck·er /ˈpekə $ -ər/ noun [countableC] 1. keep your pecker up British EnglishBrE old-fashioned informalHAPPY used to tell someone to stay cheerful even when it is difficult to do so 打起精神,振作起来keep your pecker up• It's going to boil down to keeping your pecker up, looking on the best side of things. 2. American EnglishAmE informalHBH penis 阴茎