i love swears so much ! i swear a lot. im a rude person.
“bordel” is the one i use the most. it means whorehouse.
“fais chier” is a close second. i dont know how to translate it but it’s something like “this sucks” except a lot more sweary
and finally “connasse” is my fav insult. you’re basically calling people a womb. it’s hilarious to me