Ariel Winter slams online body-shamers: 'I looked HOT in that dress'

Body-shamers, beware: Winter is coming — again!

Ariel Winter is once again putting online bullies on blast for how they talk about celebrities' physical appearances — including her own.

Couldn't be more grateful to @shanelle_gray & @davidbarrygray for throwing me the most amazing graduation party ever last night...the amount of love and support they've shown me for the past four years has been life changing. My sister is my absolute best friend and my everything...❤️ Thank you so much. I couldn't be luckier or more grateful. I was in awe last night and I still am that you guys love me that much to do all of that for me...I never would be where I am today without you guys saved me and taught me to be the person I am today. Dad...I love you!!! Thank you for always being there to support and love me as well and always put a smile on my face no matter what :). I'm so grateful for the bond we now share. Alenah the song you put together with Shanelle and recorded for me was one of the most special gifts I've ever received. I'm still tearing up thinking about it. Thank you for that and for your beautiful, special performance. Also a big thank you so much to Geraldine for putting it all together and to @contemporarycatering @robpauerful for the most amazing food! A special thank you as well to Sharon who is probably the biggest reason I was able to get through high school and accepted into pushed me to always do my best and encouraged me...not to mention you were always there for my 1am freak outs about late projects :) Anddddd thank you SO MUCH to all of my amazing family members and friends that flew in to celebrate with us- you guys are the absolute best. Thank you also to the ones who didn't have to fly much love was felt all around last night. Thank you thank you thank you!!!!!! Class of 2016...❤️ #uclabound

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The 18-year-old "Modern Family" star took to Twitter on Wednesday with a message for detractors who made a fuss about the slinky dressshe wore to her graduation party.

"Dear sorry body-shamers, I looked HOT in that dress. And if you hate it, don't buy it. But please get a hobby. XOXO Ariel #EmbraceYourBody," Winter tweeted.

She followed that by posting a confident selfie to Twitter and Instagram with a message to women urging them "embrace" themselves for who they are.

"Don't let those outside voices become your inner voice," wrote the actress.

RELATED: Ariel Winter shares message tackling school dress codes and shaming girls

The teen star's fans know she's passionate when it comes to body acceptance, and has a zero-tolerance policy for anyone who tries to shame girls and women for how they look and dress — even taking on school dress codes!

The actress famously took on online shamers after she was criticized for posting a photo of herself wearing a bikini in 2015.

✌🏻️✌🏻 #mynieces #lovethem #fbf

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"I typically never give power to the mean things people bravely say behind their computer screens on the Internet, but this is for the girls who are constantly bullied whether it be online or at school," Winter wrote on Instagram.

RELATED: 'It sickens me': Ariel Winter fires back at body shamers over bikini picture

"You are not asking for anything because of what you are wearing — you are expressing yourself and don't you ever think you deserve the negativity as the consequence to what you are wearing — YOU ARE BEAUTIFUL."