i heard its halal for a couple to use vulgar and strong language in the bedroom to intensify pleasure. is this true?

‎Talk between husband and wife that increases desire is allowed, but not insulting, cursing, or accusing of zina, even if it is not meant literally. The Prophet ﷺ‎ said the believer is not one who curses, nor is he obscene or foul-mouthed (reported by al-Tirmidhī; graded ṣaḥīḥ by al-Albānī raḥimahullāh).