They are just lazy and eat too much avocado toast. It’s obvious.

It is implying that the reason he was not answering the gf on the phone is because of the choice he was given at the last panel: he chose to not have arms, they cut his arms, and he can’t write a text on the phone anymore because of it.

Omg, I didn’t get that far in the joke. I was just thinking that he was ignoring the stupid text presure by just being in the moment doing stupid nonsense stuff with his friends ignoring the phone.