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					Originally posted by NEZ  bomb·shellˈbämˌSHel/Submit
 noun
 1.
 an overwhelming surprise or disappointment.
 "the news came as a bombshell"
 2.
 informal
 a very attractive woman.
 "a twenty-year-old blonde bombshell"
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 The expression is 
blonde bombshell. 
 
"Blonde bombshell" = 1,920,000 results
"Blond bombshell" [sic] = 462,000 results
"Brunette bombshell" = 615,000 results