A piping hot dump that you take in the middle of the summer (sometimes extending out into Indian summer) while in an outdoor public setting.
Holy sh*t, dude. Someone just sprayed a hot summer's deuce all over that f*cking Porta John!
Middle of the summer and you have a ripe case of swamp ass, perhaps you are out cutting grass or attending a baseball game. Suddenly the uncontrollable dump sensation sets in and you scurry to the restroom but don't make it and the dump falls out onto the ground.
A dump brought on by drinking coffee or after a large meal. Also used as a descriptive term for piss poor or half assed work.
"Dude that coffee made me drop a Hot Deuce in the toilet"
"This email looks like a f'ing Hot Deuce"
You're on the way to the airport, when suddenly something starts to boil deep within your soul. You sink into the taxi's back seat and begin to sweat. Of course. You know the feeling well. It's a HOT DEUCE.