Udderly despicable.

A Tennessee thief was caught on camera sporting a ridiculous cow onesie when he and an accomplice broke into a smoke shop and stole a handful of vapes, according to photos released by police.

The bovine burglar was first spotted trying the handle of a door to a vape store in Smyrna with another masked person around 2 a.m. on Aug. 9, cops said.

The longhorn larcenist was seen decked out in the goofy disguise during the casing, while their partner-in-crime opted for a much more low-key all-black getup. 

Exactly a week later, the pilfering livestock returned to the vape shop with two other compatriots at around 1 a.m., police said. 

Cops said that the crew made their way into the store, then ran off with multiple vape products. 

The trio — including the cowman — are still on the lam, the Smyrna Police Department said.