Bangu

Bangalis who are secular or borderline hindu or a full-fledged hindu or sahabagi.

They have literally no moral value, no family values, no religious values. They are into trends, festivals, "days" that they have no idea about; they just blindly do it because everybody is doing it. You will see them following "days" like 14th Feb, 15 Aug, 31st night, choitro shongkranti, pohela boishakh deeply.
They consume tamil/hindi/english/japanese/korean etc goyslops(movies, songs, item songs) etc like fools.

Modern bangus talk in a weird Nekami accent (a weird accent which sounds like the speakers tongue is at gunpoint to not touch the palate roof).

Bangur bacchay koy ki!? (What is this son of bangu talking about?)
shalar puter bongsho huidda Bangu. (His whole bloodline is bangu)