THUNDERCLAP
bombshell, thunderbolt, thunderclap
(noun) a shocking surprise; “news of the attack came like a bombshell”
thunderclap
(noun) a single sharp crash of thunder
Source: WordNet® 3.1
Etymology
Noun
thunderclap (plural thunderclaps)
A sudden, loud thunder caused by a nearby lightning strike; a shock of thunder, as opposed to a reverberating rumble
Verb
thunderclap (third-person singular simple present thunderclaps, present participle thunderclapping, simple past and past participle thunderclapped)
(intransitive) To produce a loud burst of sound like a thunderclap.
Source: Wiktionary
Thun"der*clap`, n.
Definition: A sharp burst of thunder; a sudden report of a discharge of
atmospheric electricity. "Thunderclaps that make them quake."
Spenser.
When suddenly the thunderclap was heard. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition