出典:Wiktionary
In reference to actor Matthew Lewis, who played Neville Longbottom in the Harry Potter film series. Lewis was perceived to have become significantly more attractive as an adult.
Neville Longbottom (三人称単数 現在形 Neville Longbottoms, 現在分詞 Neville Longbottoming, 過去形および過去分詞形 Neville Longbottomed)