Instead of normal pre-workouts that use caffeine, the forbidden pre utilizes your pain, rage, regret, or vengeance as motivation. Most of the time, this can even be more effective than more traditional types of pre-workout. Ever been heartbroken? Use that forbidden pre. Ever had a good buddy pass away recently? Use that forbidden pre. Remember that one kid who called you fat in middle school? Use that forbidden pre.
Man, I ran out of pre-workout, I guess I have to load up those old messages and use the forbidden pre.

*2 seconds later*
AHHHHHHHHHGH

*slams deadlift PR"
by Cheesebuger2143 July 24, 2022
Get the The Forbidden Pre mug.
Forbidden Pre is your motivation from all the heartache you've been through pressed into small bursts. Commonly it is used in the gym to push yourself do do better than you did prior.
I'm gonna use my divorce as my forbidden pre. I gotta show her what she's missing!
by Thatdudefromthatcompanyinthatc February 13, 2023
Get the Forbidden Pre mug.
Using anything regarding a crushing memory yo motivate you in the gym instead of normal pre-workout (e.g. reading ex texts or talking to your ex, remembering a dead relative/friend, etc.)
Person 1: Damn I ran outta pre
Person 2: That sucks, you gonna use the forbidden pre workout?
Person 1: Already sent the text
by April 28, 2022
Get the forbidden pre workout mug.
Using memorabilia of an old relationship that did or did not happen to use as pre-workout for a harder, more meaningful, workout. examples would include pictures, text messages, notes, as well as other things. Fuck your ex, go back if you’re a pussy.(but who don’t love pussy). NOTE: always hits harder when you’re still in love with her.
I tapped into the forbidden pre workout and used my texts with my ex along with futures new album to get the best pump of my life.
by fuckthasuppliers December 8, 2022
Get the Forbidden Pre Workout mug.
It's not Devin's definition. It's cum.
I ran out of pre-workout for the gym. Time to suckle on that forbidden pre!
by deez nuts joke November 11, 2022
Get the Forbidden Pre mug.