環保吹 [环－－]

Jyutping waan4 bou2 ceoi1
Pinyin huán bǎo chuī

Definitions (粵典–words.hk)
  1. 名詞、黃賭毒
    唔​用​安全套​口交
    condomless blowjob, literally: environmentally-friendly oral sex
    • 千祈唔好貪方便做環保吹，會有性病㗎。
      千祈唔好贪方便做环保吹，会有性病㗎。
      cin1 kei4 m4 hou2 taam1 fong1 bin6 zou6 waan4 bou2 ceoi1, wui5 jau5 sing3 beng6 gaa3.
      Don't give out blowjobs without the rubber out of convenience. You may get an STD from it.
Definitions (Wiktionary)
  1. verb, Cantonese, slang, vulgar
    to have oral sex without a condom or dental dam
Examples (粵典–words.hk)
  1. Cantonese
    千祈唔好贪方便做环保吹，会有性病㗎。
    千祈唔好貪方便做環保吹，會有性病㗎。
    cin1 kei4 m4 hou2 taam1 fong1 bin6 zou6 waan4 bou2 ceoi1, wui5 jau5 sing3 beng6 gaa3.
    • Don't give out blowjobs without the rubber out of convenience. You may get an STD from it.