The term LOOK SLYLY can be broken down into three crossword solutions: LEER (4 letters), PEEP (4 letters), and OGLE (4 letters). LEER means to look at someone or something with a sideways glance, often in a way that is considered to be rude or suspicious. PEEP means to take a quick, furtive look at something, usually with one eye. OGLE means to look at someone or something in an obvious and prolonged manner, often with the intention of expressing admiration or sexual desire. All three words describe a type of looking that is done in a sly or secretive way.