People that are KNOWN to drink like fish after a long night of drinking like a fish. Typically, these are the people that always get hit up when someone wants to get lit, find a party, or drink alcohol during times you really shouldn't be drinking alcohol. If you try to drink a rally king under a table, congratulations, you played yourself. Can be male or female either way they're still considered 'kings'.
"Idk if they'll want to go out. They said they have a 6:00am flight and a final to study for. Plus, they blacked out last night."
"LMFAO are you fucking kidding?! Of course Erin and Brittany will want to go out still! They don't care. They're RALLY KINGS!"