Top definition
The feeling you get when you smoke three blunts. This is nothing to mess with your world will be fucked once you hit the stage of Mmmchacka. It is usually described in a question by the person that had reached Mmmchacka.
Dude 1: Hey man u smoked alot of weed. Are you ok?

Dude 2: Mmmchacka?
by Mush bag December 08, 2010
Get the mug
Get a Mmmchacka mug for your mate Nathalie.