ウルトラC

ウルトラシーurutorashii

noun

  1. amazing feat
  2. trump card
  3. (something) earth-shattering
  4. very hard C-skill (in gymnastics)

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences