For some obscure reason my link above vanished somewhere into cyberspace. I had no idea the slogan came from the cross party leave campaign until I started looking up a response to Steve's post. I had automatically accepted it was a jolly jape from the Conservatives. So everyone else can share this rather important knowledge I will attempt the link again as the provenance of slogan is obviously cross party.
This puts a rather different slant on the perpetual sniping.

https://en.wikipedia.org/wiki/Vote_Leave