noun
current personal obsession; personal fad
A wasei-eigo term for something one is currently really into, often a hobby, food, or activity. Casual and often used self-deprecatingly or playfully.
wasei-eigo (Japanese-coined English), from my boom
最近のマイブームは、朝にスムージーを作ることです。
My current obsession is making smoothies in the morning.
彼女のマイブームは、昭和の歌謡曲を聴くことらしい。
Her current kick seems to be listening to Showa-era pop songs.