Meaning

noun a dark oil consisting mainly of hydrocarbons

adjective not carefully or expertly made

adjective conspicuously and tastelessly indecent

originFrom Middle English crude, borrowed from Latin crūdus (“raw, bloody, uncooked, undigested, crude”). Doublet of crudo, from Italian. Cognate with Old English hrēaw (“raw, uncooked”) via Proto-Indo-European *krewh₂- (“raw blood”); more at raw.

Etymology from Wiktionary, CC BY-SA 3.0