flake out phr v [I] 1informal to go to sleep because you are very tired 【非正式】 〔累得〕昏昏睡去: I flaked out on the couch with the TV on. 电视机开着,我累得在沙发上睡着了。 2AmE spoken to stop thinking clearly and forget things because you are too busy or nervous 【美口】 〔太忙或太紧张而〕发昏