In the raws, it's written as ば~~か!, so I'm guessing the scanlator mistook ~, often used for elongation or to make sentences end on a cutesy note, for a censor (which, for future reference, is more commonly done with ○○ marks). In this case, the more accurate translation should be "You're an iiiiidiot!"You did a good job for this being your first time, but why on earth are you censoring the word "idiot"?
oo gonna check that outIn the year of our lord 2026 we get yuri judo here and yaoi karate with Subaru the Invincible