Jennifer Lawrence is a free spirit who does not hold back when it comes to using her favorite curse words. Many of her co-stars have commented on Lawrence’s foul mouth. The 32-year-old actress has been asked about her regular crude language on numerous occasions and in interviews.
Jennifer Lawrence at an event
If she wants to swear, the Red Sparrow actress cannot control her mouth, and she has spoken about her favorite cuss words on numerous occasions. A jar was kept on Lawrence’s film set to keep her from uttering filthy language.

Jennifer Lawrence’s co-star says she has the filthiest mouth 

Jennifer Lawrence at an event
According to reports, Jennifer Lawrence was constantly using excessive profanity on the set of her well-known film The Hunger Games. People on the scene devised the idea of placing a jar to prevent Lawrence from using bad language. Unfortunately, even the jar couldn’t stop Lawrence from using vulgar language. She continued to use abusive language on stage, and the jar was full of the 32-year-old actress’s name. A co-star who has worked with Lawrence in The Hunger Games said,
“Jen has the filthiest mouth. It’s great but she’s so easy to wind up so some people set up a swear jar for her. It’s running and running, but it’s not stopped her.”
During the filming of The Hunger Games: Mockingjay – Part 2 in 2014, Lawrence reportedly lost hundreds of pounds because of her potty mouth. Many of her co-stars poked fun at her for using too much foul language. Michael Fassbender who was JLaw’s co-star in X-Men: Days Of Future Past also talked about Lawrence’s excessive use of foul language. The 46-year-old actor said,
“Her performances are intelligent and logical through what seems to be a natural intuition. She’s aloof and intelligent. Oh, and she’s got a filthy mouth.”
Another co-star from X-Men: Days Of Future Past James McAvoy stated that Lawrence’s mother was very angry at her for using cuss words on the set.

Jennifer Lawrence disclosed her favorite cuss word in an interview 

Jennifer Lawrence at an event
In an interview, the Passengers actress was asked about her favorite cuss word and which word she uses the most. Responding to this question, Lawrence stated that F**kery is her all-time favorite bad word.
“I feel like everyone gets that. This is a bunch of f**kery. And it’s not technically a word but it makes complete sense and comes out of my mouth a lot.”
Lawrence played a game on Conan O’Brien’s show in which she had to keep swearing for 30 seconds, and the host O’Brien was going to put money in a jar that read swearing is caring on each bad word she used. The 60-year-old host said that the money Lawrence will raise through this game will go to charity. The 32-year-old actress raised around $5000 and it was doubled by the host O’Brien’s for the charity Lawrence raised a total of $10000 for the kids.

Source: Nine; Time; Youtube