*when folding laundry and have an odd number of socks* "Good thing I bought the 12-pack of athletic socks from Costco, it looks like I just sockrificed another one!"
When you lose a sock in the washer or dryer, implying (in a joking manner) that there's some sort of supernatural agency to the phenomenon of losing socks.
When a member of a friend group uses their sock to clean up a spilled substance or for any other use a sock can be used for. The important part is that someone gives up a sock. It is sometimes used to counter act a party foul.
Jared spilled his beer on the counter, therefore he made a Sockrifice so to avoid having to perform the party foul ritual of the night.
At the climax of a German or Austrian death/black metal concert, this is the act in which the headlining band torches the entire front row of spectators with a flamethrower. These are the steps:
1.) Lead vocalist lets out a blood scream 'Sacrifice!' (The front row goes crazy, they are ready to meet Satan).
2.) He burns the front row alive with a flamethrower
3.) They continue the show
Vocalist: "The Sacrifice!"
Fan: "Yes dude! I'm so pumped to get fuckin killed! Cannibal Corpse kills without mercy!"