for people too lazy to say "catch you all later".. saying it really fast makes it "calculator".. used especially when hurrying out of a friend's car.. or when done IMing or txting a group of friends or exiting a chat room..
me (IMing with more than 2 friends): hey gtg guys, calculator!
friend 1: i'll calculator too! bye!
friends 2 & 3: sure!
me (thanking friends for a ride home): thanks! calculator!
friends: hopefully soon!