(slang, derogatory) An obese person, or someone with gluttonous eating habits.
I got the last new spicy chicken sandwich at the restaurant because all these big backs kept ordering it.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.