stim junkie

A former gym bro who got a bit too much enthusiastic about pre-workout supplements and now uses working out only as an excuse to get absolutely cracked out on illegal dark market pre-workout powders.

A: "Look at that insane guy throwing dumbbells around like crazy!"

B: "I know, I've just seen him take 5 scoops of that DMAA-based pre-workout drink. What a stim junkie!"