The collective noun for nieces and nephews. Sisters and brothers are siblings, so why not refer collectively to your nieces and nephews as 'nibblings'?
My sister came over to visit with the three Nibblings today and we had a play at the park.
A euphemism for the third part of the four stages of sexual intimacy. It is more sexual and intimate than a snogging, but it is not outright shagging. The four stages, in order, are canoodling, snogging, nibbling and shagging.
The snogging was nice, but nibbling with her felt so much better.