If I had a penny for every time in the past day or so I read "nuttier than squirrel …" I would have two pennies, which isn't a lot but it's weird that it happened twice
There used to be a tv advert for a chocolate bar called Topic. You can watch it here. Memes in those days used to travel by word of mouth but kids up and down the country were encouraged by older brothers and sisters to yell 'Squirrel shit' in answer to the sung prompt, "What has a hazelnut in every bite?"