'Teen Mom' Stars and Their Kids

The name is certainly an interesting choice ... here's how they came up with it!

On Monday night's new episode of "Teen Mom OG," Tyler and Catelynn Baltierra revealed the name of the daughter they're currently expecting.

While getting a sonogram, the two told the technician that they'd be calling their little girl "Tezlee," a name that certainly sparked some discussion on Twitter after the big reveal.

Some of the choice reactions online: "Holy trailer park name," "This is a joke right?" and "Catelynn & Tyler, WTF is a Tezlee?"

Well, a "Tezlee" isn't a thing, it's a word the couple completely made up.

Let's allow Tyler to explain:

"We were looking at names and we were just writing it down and I don't know … I saw Lesley and I'm like, 'No, not Lesley,' it’s kinda weird," he told Us Weekly. "We just put different words together, letters together. We wanted to keep Lee in there 'cause [of our daughter] Novalee, so we just played around with it and then Tezlee. I sent Cate a whole list of different names, of ones that I looked at, saw or kind of combined myself and she took that one!"

And there you have it.

Tezlee will join sister Novalee, 3, and Carly, 9, who the couple gave up for adoption.

"Teen Mom OG" airs Monday nights on MTV.

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