B1G1 definition by Slang.net
This page explains what the acronym "B1G1" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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B1G1 is a couponing acronym that means you buy one of something and get another one free ("buy one, get one free"). It can be used with different amounts, such as B5G1, which means you buy five and get one free.