What is another word for be foul mouthed?
Pronunciation: [biː fˈa͡ʊl mˈa͡ʊðd] (IPA) 
"Be foul mouthed" is a phrase used to describe someone's habit of using vulgar or offensive language. It's not uncommon to come across people who have a habit of being foul-mouthed. However, there are some people who find using profanity as a way to release their emotions, while others use it to gain attention. There are several synonyms for the phrase including profanity, cursing, swearing, cussing, and using vulgar language. Though it may be a way to express strong emotions, it's important to remember that such language can be offensive to others, hence conscious efforts need to be made when using such words.
