A hashbrownie is when marajuana is inserted into brownie mix and cooked so when it comes out it gives you the disirable effect of being high. The word hashbrownies orignate from the nick name hash a.k.a. marajuana.

A brownie that is baked using weed. Eating these brownies results in more of a body high, then a head high. A common misconception is that putting weed on anything will get you high. In fact, there needs to be a high fat substance(ex. Butter) to bring out the effects of the THC(active ingredient in marijuana)

chocolate cake containing weed

Breakfast in Amsterdam

Hell, it's every meal over there!