cheekyadj (-ier, -iest) (of a person, his manner, etc) lacking respect, esp in a bold or cheerful way; impertinent; impudent （指人、 言谈、 举止等）厚脸皮的, 放肆的, 鲁莽的, 厚颜无耻的 a cheeky boy, remark 厚脸皮的男孩儿、 言语.
牛津英汉双解词典