In Vedas (actual Hindu Scriptures), brahmin means one who knows Brahma or the enlightened one( twice born).No one is born a brahmin.
Somewhere down the line these scriptures were misread and misinterpreted or manipulated; now in India a son of a brahmin is generally touted a brahmin which is against Vedas (actual Hindu scriptures) and Bhagvad Geeta.

Colonial British construct rooted in 19th C scientific racism such as the Aryan Race theory which is since discredited.

Predominantly upheld by colonised Brahminical natives educated under the British Imperial system who secretly believe that they are rightful heirs of The Raj and must civilise the indigenous Hindus as the ruling class from South Asian departments.

They truly believe they are descendents of a mythical Aryan race, normally from highly privileged backgrounds, and to avoid giving up their privilege, they pretend to care about structural inequality by self loathing condemnation of their culture and by looking down on all who refuse to deracinate themselves.

They hate traditional Brahmins who are rooted in their traditional indigenous Hindu culture. They look down on and have extreme hate for India's low-caste Hindu PM and the President who is a Dalit.

A wordplay, deriving from the term Boston Brahmin.
This term originated from an Indian WhatsApp group called 'Barter', which was originally created to share interesting ideas and other things. The group was also intended to be a platform that promotes social justice, especially anti-caste ideas. But, after its creation, Brahmin anti-caste SJWs started populating the group with a particular anti-caste ideology and became intolerant of other anti-caste ideologies. Even though their primary aim is to abolish caste system, they won't consider adopting other perspectives. Usually they appear as a group and dogpile on anyone who tries to present a different perspective.

Food for thought, in a literal sense. It is food whose purpose is to fuel a late night study session or any other situation in which the brain is actually to be utilized.

Often used ironically to describe food eaten for a situation from which no good could ever come.

a rich Bostonian dickhead