唄 [呗]

Jyutping baai6
Pinyin bei

Definitions (CC-CEDICT)
  1. modal particle indicating lack of enthusiasm
  2. modal particle indicating that things should only or can only be done a certain way
Definitions (Wiktionary)
  1. character, colloquial
    Particle indicating obviousness or grudging agreement.
    • 甲：為啥你穿校服？
      乙：去上課唄。
      甲：为啥你穿校服？
      乙：去上课呗。
      jiǎ ： wèi shá nǐ chuān xiào fú ？ Ｙǐ ： qù shàng kè bei ．
      A: Why are you wearing school uniform?
      B: Err, I'm off to school... (duh!)
Definitions (Unihan)
  1. final particle of assertion
  2. Cangjie Input - Simplified
    XRBO
  3. Cangjie Input - Traditional
    RBUC

唄 [呗]

Jyutping baai6
Pinyin bài

Definitions (CC-CEDICT)
  1. to chant
  2. see 梵唄|梵呗[fan4 bai4]
Definitions (Wiktionary)
  1. character, obsolete
    to chant
  2. character, obsolete
    chanting; sound of chanting
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    用你的手机拍呗。
    用你的手機拍唄。
    yòng nǐ de shǒu jī pāi bei 。
    • Take a picture with your phone.
    • Take a picture with your mobile.
Examples (Wiktionary)
  1. Mandarin
    甲：为啥你穿校服？乙：去上课呗。
    甲：為啥你穿校服？乙：去上課唄。
    jiǎ ： wèi shá nǐ chuān xiào fú ？ Ｙǐ ： qù shàng kè bei ．
    • A: Why are you wearing school uniform?
      B: Err, I'm off to school... (duh!)