BTOBS

What does BTOBS stand for in messages?

Be there or be square

BTOBS is an acronym for a playful phrase that humorously suggests that if someone doesn't attend, they're missing out and might be considered dull or "square." Simply put, it is what you say when you want someone to show up to an event, and you want to add a bit of playful pressure.

This phrase harks back to the mid-20th century, when "square" was a slang term for someone who wasn't hip or cool. People often use BTOBS in casual, friendly contexts, like inviting friends to a party or gathering, while reminding them that staying home will make them feel lame while everyone else is out having a blast.

Example

are you coming to the party tonight?
idk, i'm kind of tired.
come on, it'll be fun! btobs!
alright, alright, i'll be there

Agent K telling J to BTOBS

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Updated May 12, 2026

BTOBS definition by Slang.net - The Slang Dictionary

This page explains what the acronym "BTOBS" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.

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