captioned the video. "IDK [I don't know] obsessed with my underwear and licks my face."
She added the hashtags #clingypet #pandemicpuppy #puppy and #teenmom - but viewers were horrified by the weird footage of her dog and the mass of clothes on the ground.
"That little dog was probably chewing the crotches out of the underwear and then licking her face. She is a gross," commented one user.
"Lmfao omg girl noooooo. Why post this for the world to see Farrah," wrote another, while a third demanded: "What the fuck did I just watch?"
A fourth said: "Go back and watch the videos from around Christmas time. Piles and piles of food on the small kitchen counter. Farrah is either a hoarder or extremely messy."
"A dog that little could easily die from blockage from eating the fabric," noted another person. "It's gross and dangerous."
A sixth user remarked: "I really hope that’s a dirty clothes pile. If Farrah is wearing underwear that’s been laying on the floor with the crotch licked by a dog."
In addition to Billionaire, Farrah and her 12-year-old daughter Sophia have pet dogs named Boo and Cupcake.
Back in February, her tween daughter Sophia revealed that Billionaire was "gay" and enjoyed chowing down on undergarments.
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In a , Sophia was talking to the camera as she said: "So I was saying, my dog Billionaire, he is gay and I'm proud of him for being gay.
"One of his top habits is eating my mom's lingerie. So my favorite thing about him is he loves going into shoes and he loves eating the shoes but he can go into girls' shoes too.
Meanwhile, the mother of one was back in November.