くっそ

くっそ, くそっ, くそー, クッソ, クソッ, クソっ, クソーkusso

interjection · prefix

  1. shit!
  2. damn!
  3. very
  4. extremely
  5. really

Study it in Yanamino

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