is a phrase meaning everything is okay, its no big deal, it aint no thang but a chicken wang.

Everything is all good

What do you eat at Thanksgiving? Turkey, exactly. And the turkey is usually dry, but still tastes good, right? Well, if you put gravy on it, it makes it much better. Thus, gravy = good. It equal to "It's all good"

Its all gravy is a sighn that all is good and dandy!

when somethnig is good, great, awesome, sweet as

its all gravy refers to a typical sunday dinner, consisting of beef and gravy. "its all gravy" means you have no beef with anything/anybody!

A phrase developed by the U.S. government in the 1990's to fight the impending assault on American teen youth by the "Gangster Rap" of the decade. Instead of using the Phrase "its all good" witch in gangster rap meant "I am going to kill that blood if its the last thing I do" resulting in hundreds of thousands of deaths all across America and the World they slowly infiltrated the "Gangster Rap" scene by using the phrase "its all gravy" witch meant "peace and love throughout the world, blue and red are no more than colors in a crayola crayon box"... at its peak the use of "its all gravy" was used up to 98% of the time in place of "its all good" witch resulted in a dramatic decline in gang violence.
the creators of the word were given a nobel peace prise in the fall of 99, but later had to give the money and the award back for haveing sex with 19 16 year old girls in celebration of the award.