“Big back” is slang for an overweight person, a “food lover” or someone who eats a lot, according to Urban Dictionary. People on TikTok use “Big Back” as a caption on videos wherein ...

But now ‘big back’ it’s so common in their vernacular, they say it anytime there’s eating happening. Also, ‘You’re a fatty.’ ‘Fatty’ has definitely come back,” she says.

Let’s be honest—frying ribs is some real “Big Back Behavior ... eyebrows raised like I was trying to trick them into eating something wild. Fast forward five minutes.