There's a text snippet autocomplete wouldn't predict.
No it taint, it's called the privates.
Well those tend to be the two smelliest parts on many people too. Armpits get an honourable mention.
But somehow dogs don't seem to care too much about armpits, in spite of being smelly and warm.
Dogs tend to go straight for the front and rear ends of other dogs for sniffing and licking too. They probably just want to know what you ate and when ;)