(1)ポップのようにあるいはポップで
(2)like a pop or with a pop; "everything went pop"
さらに詳しく
(1)必要に応じて（医師が処方を書く際に、PRNを使う）
(2)according to need (physicians use PRN in writing prescriptions); "add water as needed"
(1)提案、意見などを支持して
(2)in favor of a proposition, opinion, etc.
