Entry 2 senses · 2 variants Webster, 1913 Pshaw /pshô/ · IPA /ˈpʃɔː/ interj. v. i. 01 interj. Pish! pooch! -- an exclamation used as an expression of contempt, disdain, dislike, etc. 1. Pish! pooch! -- an exclamation used as an expression of contempt, disdain, dislike, etc. 02 v. i. To express disgust or contemptuous disapprobation, as by the exclamation “ Pshaw!” 1. To express disgust or contemptuous disapprobation, as by the exclamation “ Pshaw!” “The goodman used regularly to frown and pshaw wherever this topic was touched upon.” — Sir W. Scott.