I just paid $100.00 for this sweater, coñaso!

phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz

Hecho un coñaso a mi rodilla cuando he caido. I hurt my knee when I fell.
Sarcastically, I was told when I asked a guy while backing up my car how much room I had, "No te preocupas, el coñaso te aviso!" don't worry, the smash will tell you.
Neither translates well and I'm not sure if my grammar was correct but I laughed my balls off when I heard both.