What is Znapple?
Short for "pizznapple," which is a "pizza apple." In other words, an apple is a fruit that is good for you pretty much whenever you would like to eat one, should you decide that you do. Referring to a "pizza apple" is saying that you eat pizza in much the same manner - like it's good for you and you can eat one whenever you like. Stoners and fatties are known to use this term frequently.
Oh man, I just ripped this huge bong hit and I'm in the biggest mood for a znapple.
You know what sounds about good right now? A freakin' znapple.
Dude... this is my seventh znapple today. Is there any more?
I'm never eating znapple again.