めたくそ

めたくそ, メタクソ, めちゃくそ, メチャクソ, めったくそ, メッタクソmetakuso

adverb

  1. very
  2. extremely

Study it in Yanamino

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