Vegas throat
n.— «The singer has had to cancel several shows in recent weeks because of bronchitis. Her publicist says the condition was brought on by the dry air in the desert, along with all the heavy air conditioning in the hotels and casinos. Many refer to the condition as Vegas throat.» —“Bronchitis Forces Cher To Cancel Several Shows” KTNV-TV (Las Vegas, Nevada) Oct. 7, 2008. (source: Double-Tongued Dictionary)
Further reading
The slang term 4-55 air conditioning is means cooling a car by driving fast with all the windows down. This is part of a complete episode.
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