After the news of Kim Kardashian's second pregnancy broke on May 31, Twitter exploded with "South West" jokes Credit: Gary Gershoff/WireImage.com

Good one, guys. Kim Kardashian sparked an Internet frenzy on Sunday, May 31, when she revealed in a teaser for Keeping Up With the Kardashians that she's pregnant and expecting her second child with husband Kanye West.

The news was met with well wishes, of course, but also with an explosion of jokes on Twitter. Or, rather, one joke, repeated over and over and over again — that the baby would (or should) be named South West, to go with the couple's nearly 2-year-old daughter North West.

Within just a couple of hours after the midseason finale of KUWTK aired on E!, "South West" was a top 10 trending topic on Twitter, both worldwide and in the United States.

As of late Sunday evening, however, Kardashian herself had yet to join the conversation. She teased the "exciting news" in a tweet prior to the episode, but went silent on social media just minutes before the teaser aired on the East Coast. 

The 34-year-old reality star has been vocal over the last year about her struggles to conceive, even telling her doctor during the midseason finale that she was "so over" trying to get pregnant. "Like, I'm exhausted, so I'm sure everyone gets to that point," she said. "I'm like, 'Okay, I'm done.'"

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