steups
The sound made by sucking one's teeth.
He thought he heard a loud steups somewhere from the dark.
Where it comes from
Imitative of the act of sucking one's teeth as a gesture of annoyance or disapproval. Native to the English-speaking West Indies, e.g. Barbados, Trinidad & Tobago etc. In Jamaica, the term "kissing teeth" is used instead.
Adapted from the Wiktionary entry steups (CC BY-SA 4.0).