flake out

Found in Anh - Anh (Wordnet)

Definition Verb (intransitive, informal): 1. To fall asleep, especially suddenly or unintentionally : To change from a waking state to a sleeping state, often due to exhaustion or boredom. 2. To collapse from exhaustion; to fail to function due to extreme tiredness : To be unable to continue an activity because one is too tired. Usage This is an informal, phrasal verb. It describes the act of f...