Low social battery
Today's Mandarin: 今天不想营业 (jīn tiān bù xiǎng yíng yè)
I do not want to be socially available today.
Why this Mandarin works
Learners remember Chinese better when it connects to a real mood, not a sterile word list.
Context note
This is a playful modern phrase. Use it in casual contexts, not in formal writing.