Little Jack HornerLittle Jack Hor‧ner /ˌlɪtl dʒæk ˈhɔːnə $ -ˈhɔːrnər/a character from a nursery rhyme (=an old song or poem for young children)Little Jack Horner sat in a corner, /Eating his Christmas pie; /He put in his thumb, and pulled out a plum, /And said ‘What a good boy am I’.