Definition of "touch and go" []

• Precarious, delicate, dangerous, risky, sensitive or of uncertain outcome. (adjective)

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• "Wonderful scenery with sweeping descents and a few climbs, but touch and go whether we'd make it."
• "‘Although I must admit it was touch and go there for a moment,’ he added slyly, and Nora gave a little yelp as she mistimed her step off the moving pad, hooking her heel on the metal rim and lurching drunkenly against him."
• "The 3rd Lights were riding in among the Sikh guns and infantry, but when Paddy launched a frontal infantry assault they ran into a great storm of grape, and it was touch and go for a while, for when they reached the jungle the Sikh guns were still doing great execution, and there was horrid scrimmaging among the trees."