A fanny nanny is someone who carries around a fanny pack. The "nanny" part refers to when for instance a group goes on a rollercoaster and needs a place to put their phones they ask the friend with the fanny pack to carry their phones.

When you eat dirt for the first time and leave your family to build a shack in the woods

When a man slathers a common cleaning product upon his dong and inserts it into his partner's anal cavity, working it in and out until it has been cleaned to his liking.