When you cannot get out of the shower fast enough to shit so you accidentally drop loaf in the tub. You must now mash it down the drain with your big toe.
"I had no time to jump out of the shower to crap out last night's tacos so I had to mash the drain cuz I shit the tub ."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.