This vine had some weird looking fruit it has spikes and grows on a vine. Live in Ontario so I anyone knows what this is please let me know.
Other than the fruit looking a little bit slumpy at one end (which is only shown in a small minority of the photos of the fruit online), it's a near-certainty. The only outlying possibility is something closely-related that was introduced from cultivation and happens to have escaped, but is not yet widely/significantly reported for the province.