Highrass 

The act of being high and harassing those around you.

A combination of high and harass

John did a bunch of coke and highrassed the clerk at 7/11 all night.

Highrass by DrTwitchh August 1, 2019

Highass 

To be doing something that you shouldn't at the time.

Pearl was highassing in her office, instead of at the meeting.

Highass by Joel Childers May 22, 2008