信手拈来 xìnshǒu-niānlái[toss;pick up at random;have words,materials etc
at one's fingertips and write with facility] 随手取来。形容写文章等时词汇或材料丰富,能熟练运用
顺手拿来。比喻写文章时取材运笔极为自然。宋．陆游〈秋风亭拜寇莱公遗像〉诗：「巴东诗句澶州策，信手拈来尽可惊。」元．陶宗仪《南村辍耕录．卷二四．待士鄙吝》：「阿翁作画如说法，信手拈来种种佳。」
