Catholic Tabernacle. Box on the alter of Catholic Church where the host is kept. The host being the representation of the body of Christ in the typical form of a wafer/cracker that is handed out to parishioners during a Catholic Mass. So a snack. The place where the snacks are kept.
The priestopened the Snackernackle to get out the wafers to nourish the parishioners.
Noun - A person who is easily distracted at work but also is aware and admits to their inefficiencies.
"I'm such a slackerino. I got hardly anything done at work today after wasting time online and shooting the shit with my friends over five coffee breaks."