Hipster slang for noticing a woman with a nice derrière.
Damn did you see Jana in jeans yesterday? She was definitely Packing Cake…
(V) To pack a bowl consisting of 2 or more layers of weed, kief, and/or wax.
"Aye bro you packing cake?"
"Its triple layer dude, GDP, Durban and this fire wax i got from my boy B!"