Dome-sack v. The process, usually in gaming, of getting a headshot on someone and places your testicals on their face. This phrase has made its way into everyday slang to also mean to completely dominate/embarrass to an audience.
"Dude I just domesacked that dude halfway across the map with my M416!" or "I just domesacked you on that physics problem"
by TheHossBoss March 18, 2010