Hi
I suppose both of these exist without much difference?
Have eyes on the back of one's head
Have eyes in the back of one's head
Thanks,
Tom
The expression that I'm familiar with uses "in". Judging by search results, some people use "on", though some results with "on" seem to be intended in a more literal sense than the usual idiomatic expression.
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The expression that I'm familiar with uses "in". Judging by search results, some people use "on", though some results with "on" seem to be intended in a more literal sense than the usual idiomatic expression.