phrase origin

[ashinsky]

where did the phrase "can't walk and chew gum at the same time" originate?

[jno]

lost in the mists of time, but almost certainly American. President Lyndon Johnson said it of Gerald Ford, who later became president himself - except it was fart and chew gum; everybody bowdlerised it.

[beatle3]

some poor sod who just trod in the stuff