Farrah Abraham never shies away from an opportunity to diss her Teen Mom OG costars — and this time, she's taking aim at Catelynn Lowell.

The adult entertainer and business owner writes in a Twitter status update about how Cate should take parenting tips from her.

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"Take notes on how to be a good mom and a full time mother, you need all the help you can get. #proudmom," Farrah says.

She also adds that her seven-year-old daughter, Sophia, loves her.

Both Catelynn and her husband, Tyler Baltierra, have yet to address the comment.

This comes on the heels of a bitter reunion special, where she and fellow Teen Mom Amber Portwood had it out over comments Farrah and Simon Saran made about Matt Baier. She also once implied that Teen Mom 2 stars Chelsea Houska and Kailyn Lowry only got pregnant for fame.

Let's not forget Farrah has also had a rocky relationship with Maci Bookout thanks to her career choices. We'll next see the OG ladies on the Unseen Moments special.

See how much the Teen Moms have changed over the years in the gallery!