頂牛兒 [顶－儿]

Jyutping ding2 ngau4 ji4
Pinyin dǐng niúr

Definitions (Wiktionary)
  1. verb, Mainland-China
    to lock horns like bulls; to clash; to be at loggerheads
    (syn.) 对杰, 拄錘, 對傑, 拄锤

頂牛兒 [顶－儿]

Jyutping ding2 ngau4 ji4
Pinyin dǐng niú r5

Definitions (CC-CEDICT)
  1. to push with the forehead
  2. to lock horns
  3. to be at loggerheads