TikTokers are using a SpongeBob TikTok filter to see if they have 'resting sad face

A new TikTok trend has people running their faces through a popular SpongeBob filter to see whether or not they have "resting sad face."

Tiktok trend - Page 3 of 79 - In The Know

I almost peed my pants! 😂✈️#sadfacefilter #sadfacefiltertrend #sadfac, sadfacefilters

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Here's how to get the viral sad filter you keep seeing all over TikTok

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Sad Resting Face with the SpongeBob filter｜TikTok Search

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How to Use Snapchat's 'Sad Face' Filter and Go Viral on TikTok

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7 hours later spongebob filter｜TikTok Search