synonym for peace out
that's it, im outta here, war in
The phrase: "War In" is a key element to the vs. matches, but can be used as an opposing call-out. War In being the equivalent of Peace Out. In other words, you're just speaking opposite. Another example is Shut up - Close Down. Another one can be Lol (Laugh out Loud) - Ciq (Crack in Quiet), and plenty more to use in conversation.
War In - Peace Out, so flip the fingers upside-down