What is Sierra-hotel?
1.
A term used by fighter pilots (and those who want to be) which means "Shit-Hot!!" Whatever is described by that term is wonderful. The words 'Sierra' and 'Hotel' are part of the aviation phonetic alphabet.
"That landing was Sierra-Hotel"
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1.
The practice of sporting your collar tucked in, typically in crime-riddled urban areas. The polar opposite of the collar pop. Made popul..