Or thirdly, is it the electrified Mountain Dew he invented the other day?

Wait a minute! Is that Mountain Dew on my electrified brass knuckles?

Morty: "Ah geeze! Rick, do I gotta fight that guy? His hand is big enough to crush my entire head!"

Rick: "I need the money, Morty. Now get in there and win!"

*Morty reluctantly does so. Seconds later a beat-up and screaming Morty goes flying past Rick like a skinny lawndart.*

Rick: "Fine...I'll do it myself. Now where did I put those electrified brass knuckles?"