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Pertaining to sex in a lewd or offensive manner. Primarily heard in UK, Canada. Every Christmas, my uncle has a bit too much to drink and starts telling off-colour jokes in front of the kids and grandparents.
1 (British English) looking or feeling ill: I’m feeling a bit off colour this morning.
2 (especially American English) an off-colour joke is one that people think is rude, usually because it is about sex: They describe their humor as suitable for the family, with nothing off-color.