It's been over a month since Maci Bookout got Ryan Edwards and his family fired from Teen Mom OG.

During that time, both Ryan and his wife, Mackenzie Standifer, have repeatedly insisted that the termination is no big deal.

In fact, they've called it a blessing in disguise and stated that they're happy to be released from their obligations to MTV.

Of course, fired Teen Mom cast members always say that sort of thing -- and no one ever believes them.

The fact is, Ryan and Mackenzie will be losing out on hundreds of thousands in earnings this year.

And the couple will likely be forced to get "real jobs" as a result on their dismissal.

Perhaps worse is the fact that it was their rival, Maci, who put them in this position.

Maci appealed to producers to fire Ryan following a reunion show taping in which her husband, Taylor McKinney, nearly came to blows with Ryan's dad, Larry Edwards.

It now seems that Maci has no regrets about the decision.

In fact, it appears that Bookout is still celebrating the fact that she got Ryan and Mackenzie canned.

While she's certainly been known to do so in the past, these days, Maci doesn't talk much trash on social media -- at least not overtly.

But she has ways of sending a message subtly when she feels that the situation calls for it.

The newest item for sale on Maci's website is a t-shirt that emblazoned with words "Petty B--ch."

The shirt immediately caught fans' attention, as most of the items that are for sale as part of Maci's Things That Matter clothing line are focused on positivity and kindness.

But to anyone who's been following Bookout's life closely in recent weeks, the shirt shouldn't come as much of a surprise.

In fact, it seems that "petty b--ch" has become one of Maci's favorite phrases.

"I really wanted to post some 'petty b--ch' (and hilarious) comments, but I'll wait until they can tell me the definition of 'petty' without googling it and reading it aloud," Maci tweeted about Ryan and Mackenzie last month.

The phrase was also used by Mackenzie on a recent episode of Teen Mom OG, which would, of course, turn out to be one of her final appearances on the show.

"I am responsible for these kids' emotions and feelings, and they don't deserve that," she said.

"It's one thing to be a petty b--ch, fine, but when you're including my kids, that's not okay with me."

As viewers can attest, Mackenzie has quite a few petty tendencies, and Maci knew exactly what she was doing when she put the shirt up for sale.

But rather than clapping back and running the risk of proving her rival right, Mackenzie has chosen to keep things poitive and upbeat on her Instagram page.

"Worrying today does not take away tomorrow's troubles. It takes away today's peace," she wrote recently.

We suppose it's a good thing that Mackenzie has adopted that attitude -- because she has a lot to worry about these days!