When you ask a child (typically your own) a question about something in the current culture that you don’
t understand or know, typically: the
name of a song, what show a character was from, or the
name of a meme and they reply with a long winded answer that often includes the history of the creator, why they created it and/or social media platform of origin along with it’s subsequent platform postings and variants.
This is usually done in a condescending tone and
may include an eye roll, over the top hand gestures and visual
aids.
My daughter childsplained the entire Steven Universe show, characters, and plot to me as though I had never seen it after I asked her the
name of the theme song when I heard it play in a
TikTok because I had forgotten the
name of it .