popsy in English dictionary popsy Meanings and definitions of "popsy" (informal) grandfather (UK, slang, dated) A girl. noun (informal) grandfather noun (Britain, slang, dated) A girl. more Grammar and declension of popsy popsy ( plural popsies) popsy (plural popsies) more Popsy Sample sentences with "popsy" Declension Stem Try again Available translations German Italian Japanese Persian Russian Turkish Vietnamese Authors