Pester us long enough and we'll eventually get around to answering your word question. We prefer, of course, a gentle reminder to a nag. (来源：EnglishCN英语博客基地)

With those two statements, we've identified two senses of the words noodge and nudge. (来源：最老牌的英语学习网站 EnglishCN.com)

Need a bit more information to satisfy your curiosity about these two similar-seeming terms? It's no bother. Noodge, which means "pester" or "nag," has ancestral kin in the Yiddish word meaning "to bore," the Polish word for "boredom," and in the Old Slavic word for "need." And yes, the verb noodge is related to the noun nudnik, meaning "pester; nag; a person who is a bore."

Then there's nudge, meaning "to touch or push gently," especially "to seek the attention of by a push of the elbow; to prod lightly; urge into action;" or, more simply and less physically, to "approach." (来源：英语问答中心 http://ask.englishcn.com)

What do we know about nudge? Not much. Lexicographers once theorized nudge had a Scandinavian origin and was related to the Old Norse word for gnaw, but they no longer believe that is true. Are the terms related? We don't know for sure, but we'll keep noodging the professional lexicographers for their best guess. (来源：英语美食指南 http://food.englishcn.com)