まんじりともしない

まんじりともしない, まんじりともせずmanjiritomoshinai

expression

  1. not sleeping a wink
  2. wide awake all night
  3. without moving

Study it in Yanamino

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