dasar

[da·sar]noun

Definitions

1.
base; foundation; basis; fundamental
"Undang-Undang Dasar" = constitution (lit. foundational law).
2.
typical!; that is just how (someone) is (exclamation/intensifier)
Colloquial usage. "Dasar lo ya" = that is just so typical of you. "Dasar bodoh!" = you idiot! (lit. fundamentally stupid). Very common in casual speech as an exclamation about someone's character.
Emang dasar lo ya, selalu bikin gue ngakak.
That's just how you are — you always make me crack up.
— Conversational Jakarta slang; film Warkop DKI Reborn (2016)