Nah it’s kirakira names in general. So weird made-up readings, pop culture references 光宙 (pikachuu falls under both), foreign words, and taboo/denigrating names.

For example.

• 皇帝 (koutei) meaning emperor, read as Kaiser
• 光宙 (kou, light and chuu, space) read as Pikachuu
• 愛保 (ai, to love, and go, to keep) read as Rabuho (love hotel)
• 宝冠 (takara, treasure and kanmuri, crown) read as Tiara.