PLACKET Meaning of PLACKET in English [plack.et] n [origin unknown] (1605) 1 a: a slit in a garment (as a skirt) often forming the closure b archaic: a pocket esp. in a woman's skirt 2. archaic a: petticoat b: woman Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012