An unknown material only owned by Mario, he flexes about it on his rap battle against Sonic as shown in the documentary: Mario vs Sonic - Cartoon Rap Battles made by Calobi Productions and in the phrase "wrist waters on my neck, Sega is a wreck" you can see Mario is showing his dominance
If you wanna get strong for that battle, you must choose between two options: money that'll last you a lifetime, or wotr. You gotta choose it for yourself, and remember, ain't no goin back bruh.