In this episode Butters is visiting Niagara Falls as a tourist, but he is arrested for being a foreigner. Nobody cares about his passport or the fact he was there "legally" and he gets funneled into a huge prison facility called "Alberta Alcatraz".
After several scary experiences he is in line for a phone call. When he gets to the front the guard pretends to not understand what he is asking for.
- Guard: WELL, what do YOU WANT?
- Butters: Uhh I want to make a phone call, please.
- Guard: Puh-hone call? Puh-hone? What's that?
- Butters: I don't understand mister. I'd like to call someone on that phone.
- Guard: Oh THIS? DO YOU MEAN-
The guard lets out a long, trumpet-like fart that sounds like, "fooooooooooone".
- Butters: Wha--- what?
- Guard 2: YEAH! YOU MEAN- (farting) foooooooooooone!
Apparently this is how Canadians make the word, "phone".
- Guard 2: HEY THIS LITTLE YANK CAN'T SAY- (farting) ffhhhooooooone!!
- Guard: HAHA!!! (farting) fuuuooooooooooooooone!
All guards start laughing at Butters and farting "fooooone". They can all apparently do this quite naturally.
- Butters: B-but, I don't have to fart right now.
- Guard: IF YOU WANT SOMETHING YOU NEED TO LEARN TO SPEAK CANADIAN!
Butters resolves to save up his farts to get his phone call. Several days pass. Now trembling and sweating, a pale Butters can barely stand in line.
- Butters: Oh man... I gotta make it...
The inmate in front of him effortlessly farts "foooooooooone" and is let ahead. Butters is up.
- Guard: YEAH? WHAT DO YOU WANT THIS TIME?
- Butters: I want... I want... I... uh... UH.... ahhH!!
Butters loses control of his bowels and sprays shit in all directions, then collapses. Everyone around yells in disbelief and disgust.
A large inmate walks up and looks down.
- It's OK little buddy, my cousin had that same speech impediment.
Then I woke up.

Sort of depends what your resources are, there's a continuum between doing nothing and full doomsday prepper. It also depends on what sort of flood you're preparing for. Like, 6 inches of water in the house, or the house is gone? Anything that gets touched by flood water is basically coated in literal shit, so you have to prepare for everything from the water level down to be completely wrecked but (hopefully) not utterly smashed like in a tornado.
Probably wise to keep some water and food. A small power bank for electronics. If you have expensive or irreplaceable things put them on an upper floor or at least off the ground if you can. If you've got some more money you could think about a generator, not just for you but for your sump pump (if you've got one). If you plan to leave maybe scope out a place you can go so you don't end up in a shelter. Figure out a plan for your animals, if you have any.
If you have insurance, take pictures or record everything you have. You want make and model of everything when it comes time to get reimbursed. You will forget a bunch of shit, and if you specify "coffee maker" you will get a $15 coffee maker, instead of the "Miele UltraCoffee 9000, Stainless Steel, with Grinder" that you lost (for example).