bomb·shell 
/ˈbɑ:mˌʃɛl/ noun
plural bomb·shells /ˈbɑ:mˌʃɛl/ noun [count] 1 : something that is very surprising or shocking — usually singular ▪ The book was a political bombshell. ▪ The news of his departure was a bombshell. ▪ She dropped a bombshell [=she surprised everyone] when she said she wouldn't run for reelection. 2 informal : a very attractive woman — usually used in the phrase blond/blonde bombshell to refer to an attractive woman with blonde hair ▪ She's a blonde bombshell who looks like a movie star of the 1950s.
