US singer Lizzo has come in for strong criticism for using an ableist slur in her new song.
She uses an the term 'spaz' in her single, 'Grrrls'.
In the opening line, she states: 'Hold my bag bitch, hold my bag. Do you see this shit? I'm a spaz.'
While the word is used colloquially in the US to mean 'freakout' or 'go crazy', it is also an offensive shortening of 'spastic' - referring to someone with cerebral palsy.
Many disability advocates say the derogatory use of this language shows how much still needs to be done.
Bernard Mulvany from Access for All told Lunchtime Live this term shouldn't be acceptable.
"Words have changed a lot as we've all grown.
"Words that we would have used, possibly, when we were younger that meant something that actually were derogatory - and we've learnt that they are, we don't use them anymore.
"If you notice the words usually refer to minority groups in our society, and this particular word it refers to being a certain way and acting a certain way in a derogatory manner."
He says another singer, Weird Al Yankovic, used the same term in a song in 2014 - and subsequently apologised.
"He was on the record as saying that he now realises that it's considered highly offensive to people, and for that he was deeply sorry and he would take that word out because he had learned that it did upset people, it did upset a group.
"And actually the group in particular we're talking about, a lot of the time don't have a voice and they rely on other people to give them that voice."
'It's like a throwaway word'
He believes this also matters due to the younger audience that Lizzo appeals to.
"They do have an impact... you can say what you like if it doesn't affect you, but you have to think outside of yourself.
"Here we have young boys and girls, that now they're hearing this word, it's like a throwaway word - but it's referring to them in a derogatory way.
"The person that's saying it mightn't mean it, but it has an impact and we have to be aware of it".
Bernard, whose 12-year-old daughter is in a wheelchair , says people should think of how she would feel.
"How would she feel - imagine she's around with a group of her friends... and someone decides just throw on a bit of music.
"And that song comes on: everyone else might say 'Sure it's only a word'.
"But she's there in the room, with her friends, in her wheelchair and this comes on to say 'Do you see this spaz' - I'm trying to think how it would make me feel?"
