FAB-U-LAY - a mix of faaaabulous (darling) and O-lay-o-lay-o-lay-o-lay.. used when something is just so darn fabulous it makes you wanna mexican wave with anyone and everyone in a mad raging party atmospheric splendor. Darling. Works best in your own head.
A very undesirable person who is fat and butt ugly. Someone who is not appealing at all and makes you want to vomit upon sight. It is disgust at first sight.
Dude 1: Did you see that fat girl with the pimples on her face?
Dude 2: Yeah, she ain't just ugly, she's was fabugly!
That girl's so fabugly I'd die of alcohol poisioning before I hit that.