Quote Originally Posted by jonthepunk
my girlfriend is russian and i dont speak very much but i hear her talk on the phone sometimes with friends and at the end of the conversation she always says da-vi....im not sure if thats a word for some form of goodbye but its prononounced like that, not sure of the spelling!! can someone please tell me what this means
"Давай" is just a key word to close an informal conversation. More complete options:

Ладно, давай, пока.
Ну давай, пока.
Ну давай, я пошёл.