Cutie Pie Meaning

(idiomatic) A cute person.

Example:   Her daughter is such a cutie pie!
1916 November 28, Dopey Dan, “Twixt Love and Safety”[1], The Washington Herald, page 14:
  Not a chance, Cutie-Pie! I'm still in th' hands o' my Oculist!
A small hand-held radiation meter.
2014, Mary Alice Statkiewicz Sherer, ‎Paula J. Visconti, ‎E. Russell Ritenour, Workbook for Radiation Protection in Medical Radiography (page 23)
  Most hospitals stock cutie pies to monitor radiation contamination levels during an emergency.