open-mouthed vs peery

open-mouthed

adj
  • Gaping in surprise, wonder or astonishment. 

  • With the mouth open. 

peery

adj
  • That tends to peer; prying, inquisitive, curious. 

  • Of or pertaining to peers or the peerage. 

noun
  • spinning top 

How often have the words open-mouthed and peery occurred in a corpus of books? (source: Google Ngram Viewer )