1.) Shitty Norweigan wood that is the cause of existence. It IS the holy grail. It is used for many products ranging from things like Monster Energy Drinks, Gunblades, Asians, and babies.
When someone, usually a heavy setindividual, douses themselves in talcum/baby powder to prevent excessive moisture and/or odor and/or chafing, resulting in them emanating a powdery scent.
"Did you get a whiff of that fat guy that walked by? He really gave himself a talc-down!"
Talcum powder that is used liberally around the balls / groinal area to avoid the dreaded sack rash. Can also be used whilst doing a handstand as hoop powder to create mini anal atomic mushroom clouds, as in Mr. Methane!
After an extreme shagfest, Chris said 'Pass me the knacker talc, me clems are on fire!'
In the case of hoop powder, 'Pour it down me crevis and stand clear - I'm about to let one off after eating that ninja curry last night!'