Is the use of the words 'off of' in a sentence grammatically correct?

Answer 1

Grammatically the us of 'off of' is not correct. If, for example you wanted someone to come off the grass you would say 'Get off the grass'. To say 'Get off of the grass' is a euphemism often heard in London and Southern England and has become common parlance, so much so that many people would assume that it is correct. However the word 'off' means to come away from, change position, something in motion, so the use of that word is sufficient to convey the meaning. Of means belonging to, from, amongst so would not be appropriate.