Arse

usgb/ɑːrs/Volume
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LampPro Tip 1/3
Informal SlangPlay
Arse is very informal and often considered rude; use in casual settings only. SlideOops, I've just texted my boss 'Arse over tit', that was inappropriate.
LampPro Tip 2/3
Not for FormalityPlay
Avoid 'arse' in formal writing or speaking, instead use 'buttocks' or 'rear end'. SlideIn the medical report, he wrote 'buttocks' instead of 'arse'.
LampPro Tip 3/3
Humorous InsultPlay
Used jokingly among friends, but can offend if the relationship isn't close. SlideMy mates laughed when I said, 'I fell on my arse'.