In announcing the decision for a unanimous court, Justice Elena Kagan was in an unusually playful mood. Observers who watched her read a summary of the opinion in the courtroom said at one point she held up the toy, which squeaks and mimics the whiskey’s signature bottle.

Kagan said a lower court’s reasoning was flawed when it ruled for the makers of the rubber chew toy. The court did not decide whether the toy’s maker had violated trademark law but instead sent the case back for further review.

“This case is about dog toys and whiskey, two items seldom appearing in the same sentence,” Kagan wrote in an opinion for the court. At another point, Kagan asked readers to “Recall what the bottle looks like (or better yet, retrieve a bottle from wherever you keep liquor; it’s probably there)” before inserting a color picture of it.

Arizona-based VIP Products has been selling its Bad Spaniels toy since 2014. It’s part of the company’s Silly Squeakers line of chew toys that mimic liquor, beer, wine and soda bottles. They include Mountain Drool, which parodies Mountain Dew, and Heini Sniff’n, which parodies Heineken beer.

While Jack Daniel’s bottles have the words “Old No. 7 brand” and “Tennessee Sour Mash Whiskey,” the toy proclaims: “The Old No. 2 on Your Tennessee Carpet.” The original bottle notes it is 40% alcohol by volume. The parody features a dog’s face and says it’s “43% Poo by Vol.” and “100% Smelly.”

The packaging of the toy, which retails for around $20, notes in small font: “This product is not affiliated with Jack Daniel Distillery.”

Jack Daniel’s, based in Lynchburg, Tennessee, wasn’t amused. Its lawyers argued that the toy misleads customers, profits “from Jack Daniel’s hard-earned goodwill” and associates its “whiskey with excrement.”

At the center of the case is the Lanham Act, the country’s core federal trademark law. It prohibits using a trademark in a way “likely to cause confusion … as to the origin, sponsorship, or approval of … goods.”

A lower court never got to the issue of consumer confusion, however, because it said the toy was an “expressive work” communicating a humorous message and therefore needed to be evaluated under a different test. Kagan said that was a mistake and that “the only question in this case going forward is whether the Bad Spaniels marks are likely to cause confusion.”

Kagan also said a lower court erred in its analysis of Jack Daniel’s claim against the toy company for linking “its whiskey to less savory substances.”

The opinion was one of four the court issued Thursday, including a 5-4 ruling in favor of Black voters in Alabama in a congressional redistricting case. The case had been closely watched for its potential to weaken the landmark Voting Rights Act.

The case is Jack Daniel’s Properties, Inc. v. VIP Products LLC, 22-148.