I'd be willing to bet that a lot of the guys that get worked up about non-standard terminology ("with you") don't use that standard terminology. In fact, I'd bet that from time to time, they even use one or more of the following:

"Thirteen", or other "teens", when checking in with altitude. ("Fedex twelve zero six, climbing out of thirteen thousand for two zero zero.")

"Point" in an altitude callout. ("American twenty five ten, two point three for seven thousand")

"We'll be looking" (As in traffic)