Bajillion means: An unspecified, absurdly large number (of).. It is informal slang, fine in casual speech but not suited to formal contexts. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
bajillion
(slang, hyperbole) An unspecified, absurdly large number (of).
Seen in the wild
I got an astronomy themed book nook for $2 because it was a return. It was originally $50. 😱 Started on this bajillion piece thing at 5am.
if your life experience is saying random collections of words and then six months later finding out that one of your flunkies got a 23yo kid to build it and now you have an extra bajillion dollars then of course you'r…
being in a showoffy mood makes me want to post a bajillion pics argh
And this is why Yuuka grows a bajillion flowers and is the Dark sage or gensokyo
The sticker company I'm using for MOST of my stickers is @bearandbeagle.store and yes they do NSFW, the company i'm complaining about here is jukebox prints (they're one of a bajillion online on demand services, they'…
Definitions
(slang, hyperbole) An unspecified, absurdly large number (of).
Bajillion means: An unspecified, absurdly large number (of).. It is informal slang, fine in casual speech but not suited to formal contexts. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
bajillion means: An unspecified, absurdly large number (of).. Register: very informal, slang. Suitable only for casual conversation, chat and social media. Do not use in business, academic or news writing. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.
“I got an astronomy themed book nook for $2 because it was a return. It was originally $50. 😱 Started on this bajillion piece thing at 5am.”
— Bluesky· May 2026“if your life experience is saying random collections of words and then six months later finding out that one of your flunkies got a 23yo kid to build it and now you have an extra bajillion dollars then of course you're going to think that saying things makes them real”
— Bluesky· May 2026“being in a showoffy mood makes me want to post a bajillion pics argh”
— Bluesky· May 2026“And this is why Yuuka grows a bajillion flowers and is the Dark sage or gensokyo”
— Bluesky· May 2026“The sticker company I'm using for MOST of my stickers is @bearandbeagle.store and yes they do NSFW, the company i'm complaining about here is jukebox prints (they're one of a bajillion online on demand services, they're all about the same level of competence on rush orders)”
— Bluesky· May 2026
Comments
For specific readers
Why is this section here?
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
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🗺️About Regional & Other slang
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.
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