watermelon UK /ˈwɔːtəˌmɛlən/US /ˈwɑtəɹˌmɛlən/ noun6 •a large round or long fruit with a thick green skin and sweet, juicy, usually red flesh that often has black seeds •a plant that has long stems spreading along the ground and produces large fruit with a green skin and sweet, usually red flesh •a bright red color close to pink, like the juicy flesh of a large melon with a green skin •a project shown as on time in reports while some parts of it are in fact running lateAs a PMO [project management officer], wherever I see watermelon reporting, I encourage the PM [project manager] to be brave and honest enough to ask for help. — 2015 •(slang) an environmentalist who uses concern for nature to hide socialist political ideas •(informal, slang) a breast, especially a large one on a woman formswatermelons