Somthing so perfect, and or amazing, that there are no words to describe it, so the following term may be inserted as a universal adjective/compliment.
George-"Hey, did you make this sandwhich?"
Bob-"Hell yeah man."
George-"It's the bomb shit."
Patty-"So I heard Mike and you had a little fun last night..."
Jessica-"Yeah, he gave me the bomb shit."