The phrase "whole package" means that someone or something possesses all the qualities or attributes needed or desired. It refers to a person or thing that is complete and impressive in various aspects. Full definition
Shred a full cup of lobster claw meat (you can buy whole packages of just claw meat), perhaps using two forks, and chop two cups of poached lobster tails. (remonline.com)
Proof of deliciousness: Prevention staffers have been known to eat whole packages in one sitting. (prevention.com)
I priced at purchasing in bulk when possible, and since in real life we can only buy whole packages of diapers, I «bought» however many packages I needed to cover the number of changes, even if I ended up with extras. (thesimpledollar.com)