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On my mama 

That means someone finna do something but the person is not playing so the person can say on my mama I finna go fuck that bitch on my mama .
On my mama I finna go fuck yo bitch 💯
On my mama by OPVMB August 24, 2018

On my mama 

Let's be real, if you hear someone say this, they absolutely do not mean that shit. But this term is used by a person swearing upon their mother that something did or did not happen/ they did or did not do something.
Marques: "I didn't eat them chips on my mama!"
Elijah: "nigga you know you lying."
On my mama by Krapochico April 23, 2024

On my mama 

Let's be real, if you hear someone say this, they absolutely do not mean that shit. But this term is used by a person swearing upon their mother that something did or did not happen/ they did or did not do something.
Marques: "on my mama I ain't eat them chips!"
Elijah: "nigga you know you lying."
On my mama by Krapochico April 23, 2024

On My Mama

A term largely used by african americans when they're about to fight you or physically harm you
I'm about to mess you up on my mama
On My Mama by Lalvon_Zelpharr January 30, 2026

On my mama nigga 

White translation: I swear to the lord in vain, my friend.
Yo, I swear I got the stuff. It’s for real on my mama nigga I ain’t lyin.

On my mama forehead 

When someone is being dead ass
Fredo: “you being for real?”
Jaimere: “yes, on my mama forehead”
On my mama forehead by Fredo2time November 4, 2019
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British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
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Word of the Day on October 3, 2026
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