A dogtoy is an item specifically designed for dogs to play with and chew on. It can take various forms, such as balls, ropes, stuffed animals, or chewable toys. A slobbery tennis ball refers to a tennis ball that a dog has slobbered on, typically while playing fetch or chewing on it. It's a common example of a dogtoy.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Slobbery tennis ball, e.g.. Explanations are generated by AI and may be inaccurate.