蚍蜉撼大樹 [－－－－树]

Jyutping pei4 fau4 ham6 daai6 syu6
Pinyin pí fú hàn dà shù

Definitions (CC-CEDICT)
  1. lit. an ant trying to shake a big tree (idiom)
  2. fig. to overrate one's own strength
  3. also written 蚍蜉撼樹|蚍蜉撼树[pi2 fu2 han4 shu4]
Definitions (Wiktionary)
  1. phrase, idiomatic
    Synonym of 蚍蜉撼樹／蚍蜉撼树 (pífúhànshù).
    (syn.) 蚍蜉撼树, 蚍蜉撼樹