According to Pottermore, in the Harry Potter world, swears aren’t meant to offend so much as they are to add emphasis—though Mrs. Weasley might argue otherwise.
Harry Potter' Fan Theories That We Wish Would've Happened
Curse, Harry Potter Wiki
5 Harry Potter Swear Words You Might Have Missed
Harry Potter and the Deathly Hallows, Harry Potter Wiki
If you could drop one f bomb or curse word in Harry Potter where would it be? : r/harrypotter
I Solemnly Swear That I Am Up to No Good Tote Bag, Official Harry Potter Merch
So they knew Harry was living under the staircase his whole life before he turned 11? : r/harrypotter
Harry Potter and the Goblet of Fire': Details You Might Have Missed
Harry Potter and the Cursed Child, Parts One and Two: The Official Playscript of the Original West End Production: Rowling, J. K., Thorne, Jack, Tiffany, John: 9781338216660: : Books
25 Things Even Potterheads Completely Missed In The Harry Potter Movies