gravybone

Noun
gra·vy·bone
/ˈɡrāvē/ /bōn'/

Origin: A Portmanteau (blending) of the words Gravy and Bonus.

1. It's when something is really extra-special sweet icing on top great. Super.

2. When receiving something unexpectedly great, it is often referred to as 'gravybone'.

1. Man, that sourdough bread was gravybone!
2. Yo dawg, that honey I met at the supermarket the other day was gravybone. Turns out she is gonna adopt my kids and put me through high school!