Noun
English Wikipedia has an article on:unparliamentary languageWikipedia
unparliamentary language (uncountable)
Language considered inappropriate for use during a parliamentary session; especially profanity or suggestions of dishonesty.
Speaker: "Please retract that unparliamentary language." Dennis Skinner
I never witnessed shouting matches in Parliament or unnecessary interruptions; unparliamentary language was only uttered in the canteen or in the VIP loo. Source: Internet
One of the don’ts was to avoid translating any unparliamentary language. Source: Internet