What does "spice my mead" mean?
"Spice" as a noun refers to aromatic substances used to flavour food. "Spice" as a verb is the act of flavouring something. "Mead" is an alcoholic drink made from honey that was very popular in the past, it is usually associated with Medieval Times. Raj is saying that he will flavour his "mead" using the blood of the enemy he is about to kill in his video game.