Friday night was worse than yours -- the rapper was stripped of his white Lamborghini after it was IMPOUNDED by cops ...
Law enforcement sources tell us... Tyga was pulled over around 11:00 PM for an unknown traffic violation in Hollywood. But when cops asked him for license and registration, Tyga had NEITHER ... no current registration AND the rapper was unlicensed to drive.
We're told Tyga was not arrested for the violations -- but the police issued him a citation and had his primo ride impounded ASAP. He was also given a field sobriety test, as seen in the footage, but was not busted for DUI.
After the ordeal, Tyga vented his frustration on Twitter, saying, "#F*** LAPD." Word to the wise ... if you wanna drive a car ... invest in a license.