India, Feb. 6 -- The world of Gen Alpha slang has become a maze of new phrases that is leaving parents and adults struggling to keep up. From the viral "slay" to "rizz" and "sigma," today's youth have created an entire vocabulary that even their own parents find baffling.

Dallas stay-at-home mom Jen Kim, 38, reflected on the slang explosion, explaining how the vocabulary shift has become harder for parents to keep track of. "When we had slang there were only a few phrases that we had to keep up with, and you could kind of guess what they meant," Kim shared with The Wall Street Journal. "This is a whole vocabulary that we're trying to decode."

For example, Kim's niece, Avery, a 10-year-old trendsetter, referred to a gift of colored penci...