picknice Nelly . nice Nelly (1) or nice Nellie {n.}, {informal} Someone who acts too good to be true; a prude; a prig. We took him for a nice Nelly when he wouldn't fight. Categories: add yours informal noun Source: A Dictionary of American Idioms 'nice Nelly' on video nice nelly JAYDEN & NELLY - Neue HAUSREGELN โ๏ธ๐ JAYDEN & NELLY | Ah Nice JAYDEN, NELLY & SPORT | Ah Nice sort: relevance, mode: exact match, q: "nice Nelly", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Post my comment