寝返り
Common
Noun
Irregular
Intransitive
1
noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb
turning over in bed;rolling over;tossing and turning
See also:
寝返りを打つ (ねがえりをうつ)
彼女がベッドで寝返りばかりうっている。
She is tossing and turning in bed.
2
noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb
betrayal;double-crossing
こいつ、さっきまで俺の相棒だったのに、もう寝返りやがった。
This rat, up until just now he was my partner and now he's gone and turned on me.