Definition of “knock sb sideways/for six” - English Dictionary


“knock sb sideways/for six” in English

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knock sb sideways/for six

UK informal

to shock or upset someone very much, or to make someone very ill:

That flu really knocked me sideways.
The news of his death knocked me for six.

(Definition of “knock sb sideways/for six” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)