Define Go Hard In The Motherfucking Paint Meaning

Go Hard In The Motherfucking Paint
To pile at least 4 people into a basement bathroom, then proceed to smoke copious amounts of Marijuana using a vaporizer with the door closed, the fan on, the lights off, a strobe light flashing, and rave music plays on a nearby boombox/ghetto blaster.

Maria: "Hey, did you guys go hard in the motherfucking paint last weekend?"

Colin: "No, we couldn't. Nobody had a free bathroom for the night."
By Shoshana