▶ USAGE The use of cobblers meaning 'nonsense' is so mild that hardly anyone these days is likely to be offended
by it. Most people are probably unaware of its rhyming-slang association with 'balls',
and therefore take it at its face value as a more colourful synonym for 'nonsense'.
The classic formulation 'a load of (old) cobblers' seems to be particularly popular
in the tabloid press
Collins English Dictionary. Copyright © HarperCollins Publishers
Word origin of 'cobblers'C20: from rhyming slang cobblers' awls balls