Similar to a the much more common rum and coke, more specifically, the Captain and coke.
The Kraken rum is a touch stronger, a bit darker, and the Rockstar Energy Cola has increased caffeine presence, thus similar to the effects of a jagerbomb.
Person b: Yeah... I heard that... ever had a night full of them, though?
Person a: No...
Person b: Well... try it. You won't ask such big questions then.
Person a: It'd be rocktopi, plural, right?
Person b: Yeah... sounds like a Pokemon...