sasses

/S AE1 S IH0 Z/
verb
  1. 1

    To talk, to talk back.

  2. 2

    To speak insolently to.

    โ€œDonโ€™t sass your teachers!โ€

Source: https://en.wiktionary.org/wiki/sass, https://en.wiktionary.org/wiki/sasses