Answer: vava

AnswerCrossword Clue
VAVA"..-voom!"
VAVASyllables before "voom"
VAVALead-in for "voom"
VAVABeginning of a sexy catchphrase popularized by 1955's "Kiss Me Deadly"
VAVA"...-voom!"
VAVA"..... voom!"
VAVA"... voom!"