n/u - It’s like asking 'and you?' but you’re too tired to even say

It’s like asking 'and you?' but you’re too tired to even say it like a normal person. You just slap two letters together and call it a day.

My friend said 'n/u' and I told him he should’ve just said 'and you?'

My sister texted me 'n/u' and I replied with 'why?'

My crush sent me 'n/u' and I felt like he was ignoring me