jævlig, jævel, and jævla in norwegian are quite versatile. i am learning it as it's the language of my ancestors and my dad raised me learning it, but sadly, i only learned basic norwegian thru youtube videos he showed me and i'm the only one actively (though on-and-off) learning it. jævlig is like "terrible" but it means "devilish", but you can also say something is "jævlig god" which is like "fucking good".

jævel is a noun, so "en rik jævel" is a "rich fuck". this might be useful for my friend who says stuff like "the horny fuck" or «den kåte jævelen». so it's like "the fuck" (noun) or "fucker".

jævla is like fucking, for example, «ei jævla tispe» is a fucking bitch, or you could say «en jævla tispe», i've heard both. "the fucking bitch" is either «den jævla tispen» or maybe «den jævla tispa», but im still learning.

Puñeta

Scheisse

I'm Spanish. I'm partial to "puta madre".

Como la puta madre - like a motherfucker

Está de puta madre - fucking amazing

Hijo de tu puta madre - son of a fucking bitch

Machikne! > motherfucker in Nepali, very satisfying

There's a frog with the species name niputidea from Spanish Ni puta idea.

Also, obligatory mention of my conlang:

rCFqKqmg "Egg eater", far more weighty when you're oviparous. Calling someone this at work is a resume generating event.

slmqNLg "Cloaca butter", BS or nonsense.

Tabernak ostie!!!!

Klootviool (bullock violin)

Teringlijer ( sufferer of typhoid)

Zakkenwasser (scrotum cleaner)

Shazbot!

"Kruzifixdeifelscheissdreck"
It has the benefit of going on for a while so you can either calm down or just keep going...
"Kruzifixdeifelscheissdreckfotzenbeidelfutoaschsau..."
It's limitless, but may lead to a bit of repetitive parts. Usually private ones.

J'aime aussi tabarnak mais calise est proche. En español, puta mierda es mi favorita. Y también, porque yo soy Tica, nosotros decimos "mae" mucho (but that's not a real curse, it just means dude)

High five to n'importe qui me puede entender 🙌🏼

Hodenkobold (Testicle Goblin)

Kacklappen (Shit rag)

Pimmelnase (Cock-for-a-nose)

Cantonese:

黐線 (pronounced like: Chi Sin) Used in place of like "idiot" but has the same weight as the R-Word in some contexts

仆街 (pronounced like: Puk Gaai) Probably similar to "dickhead" I think

Mandarin:

神經病，有毛病 (Idk where I heard this from... think I might heard it drom 1st or 2nd grade... a combo phrase combining 2 terms lol)

くそ(kuso) is my favorite.

Finnish swears are pretty fun but my favorite is perkele

A classic, the French merde.

Bocachancla

"chingadera": figuratively, 'thingsmajig' or 'doohickey', literally 'fuckerator'

"mamadas": figuratively, 'bullshit' or 'makework' or 'flattery', literally 'blowjobs'

Chinga - I think it means fuck in Spanish Mexican.

Merde

Malaka.

Kurva/kurwa always sounds fun to say to me

Vaffanculo

Not a swear per se, but I’m privy to tonto/tonta y sonso/sonsa

Behenchod (sister fucker), madarchod (mother fucker), chutiya (roughly translates to stupid/dumb).