Rapesauce.
The total and complete domination of any enemy team in a video game is said to taste of rapesauce. Said mostly when taunting an enemy before or after the game, or to describe an action.

Also spelled as-

R@pesauce
Rape Sauce
Rape-Sauce

*Note- Rapesauce is said to taste like a thick hot sauce with sugar and lime added.
Before game example-
General example-
"That (subject) was pure Rapesauce."

Player #1-"Look at these newbs, it's time to pwn them!"
Player #2- "Yeah, I can smell the rapesauce already."

After game-

Victor to loser- "How do you like the taste of my rapesauce!?!?"