When someone calls you fat, you have the choice to ignore it. Or, you can do what British model Iskra Lawrence did and serve up a delicious clapback.

Lawrence, known for her appearances in #AerieReal campaigns, decided to post a photo on her Instagram posing in her bra and panties surrounded by bags and bags of chips. The post was in direct response to a hateful troll who called her a "fat cow" and said that she was "eating too many bags of crisps." 

Listen up hater, you don't want to mess with Iskra. 

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"I'm sorry I couldn't help myself... This is for anyone who has ever been called FAT," she captioned the photo. "Opinions are like arseholes — everyone's got one." 

And don't worry, she made sure to tag the user who wrote the comment. 

Because this wasn't already enough of a "fuck you," the model also posted a slo-mo video of her eating a bag of chips. "Sorry I'm usually not rude or give anyone the finger but these online trolls smdh," she wrote along with the hashtag #everyBODYisbeautiful. 

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Lawrence is known for speaking out about body positivity, confidence and plus-size modeling — and she's great at turning a sour comment into a powerful message.

"Your worth is not judged by anybody else's opinion, your worth is yourself," Lawrence said yesterday in a video posted on RunwayRiot, a website she manages. "You decide if you're beautiful and you feel beautiful, because it's actually more about who you are, not just what you look like."