metal fatigue 

Da achy weariness dat you feel after extended periods of "pumping iron".

Cool dude, speaking comfortingly to his gloomily-slumped weight-lifting buddy who is feeling inadequate and guilty for "running out of steam" sooner than he thought he should while working out at the gym: "Don't knock yourself around too hard, Pal --- even da great 'Ahhnold' would get metal fatigue from bench-pressing for too long at a time."

metal fatigue by QuacksO July 24, 2019

medal fatigue

Inability to stay awake during the day because one has stayed up late watching coverage of the Olympic games.

Halfway through the meeting Barry succumbed to medal fatigue, slumping in his chair, snoring loudly and dreaming that he beat Michael Phelps in the 200 IM.

medal fatigue by DWF+1 August 11, 2012