proboscis monkey /pɹə(ʊ)ˈbɒs(k)ɪs ˈmʌŋki/ noun1 •A reddish-brown arboreal Old World monkey, of species Nasalis larvatus, with an unusually large nose, endemic to Borneo.Don Caldwell, editor-in-chief of the site Know Your Meme, namechecks Brr Brr Patapim, “a proboscis monkey that is also a tree”, as one who made it to YouTube. — 2025 formsproboscis monkeys