I managed to find a Reddit transcript
Van Helsing; Count Dracula, hmm...curious are you descended from Vlad Tepesh? The first Dracula?
Dr. Seward; Tepesh?
Van Helsing; Ja, it means The Impaler. He was a bloodthirsty butcher, who inflicted unspeakable torture on the peasants. Cutting off their hands and feet, gouging out their eyes, and then impaling them on iron spikes!
Dracula; They had it coming.
Jonathan; gasp What could they possibly have done to deserve such barbaric and inhuman treatment?!
Dr. Seward; Yes..
Dracula; We have a saying in the old country: "Nostloy bleckla, den noi pushta."
Van Helsing; They also say: "Stanisha ploftoi, gag mul pafuft."
Dracula; I'm very impressed Van Helsing, you speak the ancient moldavian...
Van Helsing; Fale dadalic ta.
Dracula; Kaploi. Well gentleman, I will take my...
Van Helsing; Manush....
Dracula; Leave...I see Van Helsing that you are a man who likes to have the last word. I will not be drawn into such a childish exercise...paloshtoi.
Van Helsing; Hahaha, it is immature to me who has the last word... Polotnik!
Dracula; It is getting late, we will carry on this conversation at another time, Goodnight.
Van Helsing; Good night.
Van Helsing; Hmmff.., such arrogance... it is easy to see why the decadent aristocracy is dying out in that part of the world. Fushta! Gentlemen, our work is not done. The vampire is still among us. You must remember he is cunning. He has the wisdom of centuries. And above all, he will never give up...!
Van Helsing; That man! He never gives up! ...Never gives up..
As for a translation...there is none...the words, from my reading, are completely made up. It's not about what they actually say but who gets the last word in which is a Running Gag right up to the end of the movie.