sisyphus
Actual conversation I had with my friend when I told him that I was at the gym:
Friend: What's the workout today?
Me: Arms and cardio
F: get itt
F: speaking of cardio, a few sessions ago I finally tried the stairmaster and that thing is Evil
M: It is purposely designed to be a Sisyphus Simulator but of the zigzag variety
F: Gotta push rocks if I wanna push my ass out I guess