Dumb and lame
Dumb is modernly used to describe lack of intelligence, but it was once used to describe someone who lacked the ability to speak. Similarly, lame is now used to describe someone or something that's boring or unexciting, but was also a term used against those who have limitations of movement in their limbs.
Both are highly offensive when describing people in the disability community, but also when used casually, says Cashman.
"People now are using lame as a slang, so they go around saying that's lame," she said. "I don't think they really understand what that means .. they just think it's a cool term, but for me, when I hear that, I definitely know what that term means ... it's something I wouldn't say."