Words that make you want to plug your ears

For me there's only one. I don't hate moist. Totally fine with moist. I absolutely hate the word poop.

My biggest issue with it is how some people seem to be obsessed with saying it. Shit is a perfectly good word and should always be substituted as far as I'm concerned.

My sister in law named her cat Poop. When asked how their day went, some people will rejoice in saying they are pooped. Or they just feel poopy. When talking about a ship, people will spend an unusual amount of time talking about the poop deck. Why does everyone love saying this word?

I'd rather hear feces a million times before I ever hear the P word again.

What is the word you hate the most?