Boxin

Basically like zoning out, but on purpose. Tuning out your surroundings, simply because they are not worthy of your attention.

Eliot: Dude, did you not hear me just tell you all of my most intimate and vulnerable secrets?
Tanner: Nah bruh, I've been boxin' for the last four hours.

Boxin'

Zoning out on purpose, tuning out your surroundings because they are not worthy of your attention.

Eliot: Dude, did you not hear me tell you all of my most twisted and vulnerable secrets?
Tanner: Nah bro, I was boxin'.