凊彩

Uncertain. Here are a few possibilities:

• 凊彩: From 凊 (“cold”) + 彩 (“good”) — “not good enough” > “cannot choose”.
• 靘彩: literally “dark or colourful” — it doesn't matter which you choose.
• 請裁: shortened from 請汝裁決 (“please decide”); this is unlikely.

凊彩

(Min Nan)

1. anyhow
2. casual; easygoing
3. (Xiamen, Quanzhou, Taiwan) careless; irresponsible

凊彩

(Min Nan)

1. casually; informally

• → Malay: cincai, cingcai

• “臺灣閩南語按呢寫 (Tâi-oân Bân-lâm-gí Án-ne Siá) #304”, in 臺灣閩南語常用詞辭典 [Dictionary of Frequently-Used Taiwan Minnan], Ministry of Education, R.O.C., 2011.
• 劉建仁 (2011-01-21), “襯採•靘彩（ts‘inʟ-ts‘aiˋ）──隨便”, in 台灣話的語源與理據‎ (in Chinese), retrieved 2016-10-12