1. (n) one who resides in their house for extended periods of time without having any contact with the outside world while doing this (a recluse). It is most commonly used to refer to someone who can manage his or hers daily life from the "sack", meaning lying on their asses in bed with little to no motivation to get up even for food because all of the chips and sunkist are within a few feet of the bed. It can also refer to a narcoleptic.
The beautiful moment when you're teabagging your girlfriend and your nuts slowly cover her eyes, blocking all light and creating a breathtaking eclipse effect.
That teabag was total sacklipse of the heart, babe. The smell of balls stuck to your eye lids go away after a couple washes.