Scene where Bevelaqua and Gismonte are introduced to Richie.

Anyone know what Bevelaqua means, when he says "I'm back to drinkwater ?" Is it a place he lives that he's referring to ?

Richie.
Donny! This is matthew bevelaqua and sean gismonte.
They're both from west orange.
I'm back to drinkwater.
It's fucking good to meet you, richie.