It's easier to convey anger in your second language.

Pedro_P

Our emotions shape which language we decide to use.

Swearing can come more easily to people in their second language.
durantelallera/Shutterstock
▼ Ataxi driver recently cut me off on the motorway. Without hesitation, I machine-gunned a string of vulgarity at the poor man. What struck me was that every word that came out of my mouth was in Spanish. As a native speaker of English, having learned Spanish as an adult, English should have been the more readily accessible language. Yet there I was, cussing out this stranger in Mexican-accented Spanish alongside an assortment of inappropriate hand gestures.
Most people will know what it’s like to have your emotionstake control of you in a scenario like this, but why is it often so much easier to vent frustration in a language that is not your native one? As most foreign language learners will appreciate, anything taboo is fairly easy to pick up in a second language and even entertaining to use. While I wouldn’t profane in English in my grandma’s presence, in Spanish I’m a wannabe Tony Montana.
Incidentally, there is a scientific explanation for why we often demonstrate greater emotional detachment in a foreign language. While this detachment can make it easier for us to say rather distasteful things, recent studies have also shown that it can affect our perception of morality.
Language shapes our brain (▪ ▪ ▪)

► Read the full note here: Source

divey

its also true the other way round......we are far more comfortable in cursing in our mother tongue or when we are stressed out

parivijesh100

I do not agree with thus. In case of great emotional outburst of any kind...you burst in your mother language only. Choice of right words come spontaneously.

samgmu

Mother tongue is best as words in it it comes naturally and quickly