Means your on my good side, your doing well, when being used positively. The negative definition would be used to shut someone up cause they are being rude, or a no thank you gesture. Can be used either way depending on tone and context.
When your trying to get to know a girl and she decides everything just might happen to be going perfectly, she will hint and say Ur Good. Someone says something rude like Hey lets go do the nasty and dont know you, so you reply nah Ur Good
by BabyHerc August 11, 2011
by Schmonkey July 09, 2006
by NeverMore Way July 10, 2018
Properly pronounced you're fucked, used to describe someone that did something the slightest bit innapropriate or "facked"
by Will kallinteris November 30, 2013
A funny phrase that is used as an annoying come-back. The phrase, saying it word for word, has no meaning. People usually will say it when they can't come up with a good come-back, or if they don't know the answer to your question.
Person 1: Hey, what do we have for homework?
Person 2: Ur mom.
OR,
Person 1: What does (word) mean?
Person 2: Ur mom.
Person 2: Ur mom.
OR,
Person 1: What does (word) mean?
Person 2: Ur mom.
by flobbles April 29, 2010
by Sarah eliz. December 21, 2005