Maniac

When people use maniac in a sentence like, “Tonight I am going to party like a maniac.”  I cannot help but think of a terrible person to party with.  I imagine any sort of yack would be a terrible party companion, much less, one with a long mane to get in the way.  Basically, to me, “party like a maniac” can be translated into: “party like someone who was always in the way, eats grass, almost kicks/steps on someone and is not even aware they are at a party.”