double-quick
Very quickly; at once; on the doubleVery quickly; at once; on the double.
US/ˌdʌb.əlˈkwɪk/
Meaning
1 senses(not comparable)Very quickly; at once; on the double.
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.