• IPA: /pɪʃ/

1. Expressing disdain.

• pht, feh, meh, pooh, pshaw, bah, poh; see also Thesaurus:bah

pish (plural pishes)

1. A sibilant noise (e.g. "psshh") made by birders and ornithologists to attract small birds.

pish (pishes, present participle pishing; past and past participle pished)

1. To try to attract birds by making a sibilant noise (e.g. "psshh").
2. To express contempt.

   1599, William Shakespeare, “The Life of Henry the Fift”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act II, scene 1], page 73 ↗, column 1:

   Piſh for thee, Iſland dogge: thou prickeard cur of Iſland.

pish

1. (vulgar, colloquial, chiefly, Scotland) Of poor quality; very bad.