We found one dictionary that defines the word knock sb sideways/for six:

General (1 matching dictionary)

1. knock sb sideways/for six: Cambridge Advanced Learner's Dictionary

▸ Words similar to knock sb sideways/for six ▸ Usage examples for knock sb sideways/for six ▸ Idioms related to knock sb sideways/for six ▸ Wikipedia articles (New!) ▸ Words that often appear near knock sb sideways/for six ▸ Rhymes of knock sb sideways/for six ▸ Invented words related to knock sb sideways/for six