Oh dear, I have dozens because I’m a proudly intolerant (of some things) woman.
Maternity photo shoots. Double ick if they’re in a field with a button down dress open to expose their bare belly.
Many icks are man-specific: long fingernails, shorts above kneecap length, excessive grooming, especially a really sharp, straight line on a beard, and dear God the snorting and spitting. 🤢
Kid choirs. I know. I’m going to hell. But that tuneless shout-singing little kids do makes me cringe inside out.
Pretty much all ‘performance’ that isn’t done by professionals. People’s Mums getting up to sing at their graduation party. The cousin that launches into Leona Lewis and demands an audience at Christmas lunch. I even have to leave the room during first dances at weddings, they make me so uncomfortable. Even worse were those diabolical rehearsed dance routines that had a moment…
People that call in to the radio. I have to switch it off.
Seeing little girls all dressed up for gymnastics, dance or cheer performances covered in glitter and makeup.
I think, fundamentally, people who try to draw attention to themselves give me the ick…
Also my DP who thinks it’s fine to fart during dinner, but that’s not an ick, he’s just a disgusting pig.