The phrase 'Why Not?' is a popular expression used to suggest that something should be tried or attempted, regardless of the potential risks. The crossword solutions for this phrase include LETS (4 letters), YEAH (4 letters), SURE (4 letters), OKSURE (6 letters), YES (3 letters), OKAY (4 letters), IMGAME (6 letters), WHATTHEHEY (10 letters), GIVEITASHOT (11 letters), and WHATTHEHELL (11 letters). All of these words and phrases are variations of the same sentiment, expressing enthusiasm and willingness to try something new.