屁股頭浪 [－－头－]

Jyutping pei3 gu2 tau4 long6
Pinyin pì gu tóu làng

Definitions (Wiktionary)
  1. prep, Shanghainese-Wu
    on a bottom
  2. prep, Shanghainese-Wu
    at ultimate position; at the end
  3. prep, Shanghainese-Wu
    behind