Commonly found variants; note these may range from acceptable alternatives to non-standard forms or incorrect spellings*.
* Singlish is a largely spoken creole, and as such descriptivism (recording forms that reflect actual pronunciation in spoken language, or as appearing in the linguistic corpus) is more pertinent than strict prescriptivism. Nevertheless, the use of more standard forms (or for words originating in languages with Latin script, such as Malay, accurate to the original spelling) is recommended and encouraged.

also can:

sap sap seui sup sup shui

sup sup sui

Cantonese:

湿湿碎

jyutping:

sap1 sap1 seoi3

expand for details Detailed etymology

definitions

adjective

  1. (metaphor) trivial; no big deal; easy-peasy
  2. I leaned in for a closer look. “Aiya! I’ve never seen anyone do that.”
    Po-Po beamed, trying and failing to appear humble and surprised. “Sup sup sui la” …

    — 2020, Tori Eldridge. The Ninja’s Blade. Polis Books. ISBN: 9781951709211

    Ma continued speaking. “Anyway, sup sup sui, very easy to find new connection.”
    I’m not sure if Ma meant a connection to her cultural roots or a new spin on how to make a love connection for my sister.

    — 2021, Jennifer J. Chow. Mimi Lee Cracks the Code. Penguin Publishing Group. ISBN: 9781984805041. p.84