Verb
sabre rattle (third-person singular simple present sabre rattles, present participle sabre rattling, simple past and past participle sabre rattled)
Alternative form of sabre-rattle
sabre-rattle (third-person singular simple present sabre-rattles, present participle sabre-rattling, simple past and past participle sabre-rattled)
To threaten a big battle or war.
sabre-rattle