Washington Post (Sept. 9) reports that:
The tennis star meanwhile spent her post-loss time in mom mode, at least on social media, while Billie Jean King and the National Organization for Women called out tennis for having a double standard toward women, under the headline, “Serena Williams fined $17,000 for U.S. Open outburst; Billie Jean King calls out ‘double standard’
I know she has a baby, but I’m not clear with the implication of being in “mom mode.” I checked the meaning on a couple of print and online dictionaries and found only a single playback in urban dictionary, which defines it as “become protective or nurturing others.
Does this definition fit the scene? Does it mean she turned domestic? Doesn't it have a sexist tone? Is “mom mode” a very common English expression?
What does “mom mode” exactly mean in the situation of the player of the U.S. Open Women’s Final?