Nobody Cares的缩写，用于表达“没人关心”的意思，通常是在对方唠叨一堆没必要的信息时回复，略带冷漠。
ENAbbreviation for Nobody Cares, used to express 'nobody cares', usually in response to someone rambling on about unnecessary information, with a slightly indifferent tone.
“A：你知道我昨晚刷到凌晨三点！
B：nbcs，睡觉要紧。
