When girls hoard large amounts of shampoos, nail polishes, lip-glosses, and general goo-esq. makeups. (Founded by Jenna Marbles' on screen boyfriend Max in the "What I dont understand about girls" episode.
the act of saving/keeping a bunch of apps on your iphone or other smartphoneyou don't use/need because they were free, or you simply dont want to get rid of them.
guy 1: why do you have 10 pages of just apps?!?!
app hoarder: dude, i cant get rid of them they were free!
guy 1: but you dont play with any!
app hoarder:..................ummm...........yeah sometimes
guy 1: dude your app hoarding ...* smh in dissapointment*
To keep all your electronic files and messages and other "data" until it piles up for no good reason, such as saving ridiculous numbers of email messages that you'll never look at again.