"You canker blossom!" 3 Shakespearean Insults
1590s, from Greek Proteus, sea god (son of Oceanus and Tethys) who could change his form; his name is literally "first," from protos "first" (see proto-).
protean pro·te·an (prō'tē-ən, prō-tē'-)adj. Readily taking on varied shapes, forms, or meanings.