Example A: getting repeatedly pounded in the vagina for hours by some hot god of sex but having to deal with a sore vagine for days later.

-"Dude, my vagina is still rallied from all that sex I had five days ago..."
-"Shitnice."

Example B: eating that mouthwatering burger, huge beef patty stacked high with toppings and loaded with grease that makes you want to orgasm at the table, but later leaves you in an intense meat coma.

-"That must have been some burger, I found you sleeping on the toilet.."
-"ugh, shitnice."