A tightly folded up "wad" of toilet paper jammed in your ass crack to prevent yourself from shitting your pants because you have diarrhea.
Is a temporary fix, for example if it comes on when you're out in a bar or a club. Note the wad needs to be changed quite frequently.
Is most commonly mistaken for a wad of dough/money.
In the Bar:
Guy 1:"Hey man, big night tonight, I've taken out a lot of cash, how about you - you gonna blow your Wad?"
Guy 2: "I sure as hell hope not..." *runs to bathroom again*