She's made a career out of sending up celebrities, and Celeste Barber was back at work on Wednesday.

The 39-year-old comedian spoofed Kendall Jenner in a hilarious video posted to Instagram.

The video showed a seemingly nude Kendall, 25, posing happily in murky waters, smiling and tossing her head around for the camera.

It then cut to Celeste, who started out posing similarly, playfully swinging her arms around in the water.

She then started splashing around violently, pulling her legs up to her body, while screaming hysterically. 

'S**! Oh my God, what was that? What was that? What was that?' she yelled.

The funnywoman simply captioned the post: 'Modelling is terrifying.'   

Celeste previously revealed that some celebrities have blocked her on social media during an interview with Jameela Jamil's iWeigh podcast in January. 

'If Cindy Crawford and Gwyneth Paltrow are okay with it, you can all f**king be okay with it!' she joked at the time. 

In an interview with The Guardian in June 2017, she admitted she gets annoyed with the fashion elite thinking they're 'better than other people'.  

'I get a little miffed with fashionista people thinking that they are much better than other people because they are very slim and have architect husbands and get to wear free stuff,' she said. 

'It's a bit [like they are] rubbing your nose in, "This is how we live, sorry guys" - and that bums me hard.'