The phrase "goes out like light" refers to something that suddenly and completely turns off or shuts down. The phonetic transcription of this phrase is /ɡoʊz aʊt laɪk laɪt/. The word "goes" is pronounced with a long "o" sound /oʊ/ and ends with a voiced "z" sound /z/. "Out" is pronounced with a diphthong "ow" sound /aʊ/ followed by a "t" sound /t/, and "like" is pronounced with a long "i" sound /laɪk/. Finally, "light" is pronounced with a long "i" sound /laɪt/ and ends with a voiceless "t" sound /t/.
The phrase "goes out like a light" is an idiomatic expression used to describe someone or something that quickly and suddenly falls asleep or loses consciousness. The phrase draws a metaphorical comparison between the swift and complete extinguishing of a light bulb and the sudden transition into a state of sleep or unconsciousness.
When someone "goes out like a light," it suggests that their transition from an awake or conscious state to sleep or unconsciousness is almost instantaneous, without any apparent effort or resistance. The phrase usually implies that the person falls asleep deeply and soundly, often indicating a gradual decline in alertness, followed by a rapid and complete surrender to sleep.
Furthermore, the phrase can also be used to describe an abrupt power failure, where a light bulb suddenly stops shining, leaving the surroundings in darkness. This secondary sense emphasizes the sudden cessation of a light source, emphasizing the unexpected and immediate nature of the event.
In a broader context, "goes out like a light" could also be figuratively extended to describe any sudden or unexpected conclusion or conclusion of activity, akin to a light abruptly turning off. This usage suggests a swift and complete termination, leaving no room for continuation or continuation of the previous state or activity.