Your mileage may vary
= Y =
Yow! /yow/ interj.
[from "Zippy the Pinhead" comix] A
favored hacker expression of humorous surprise or emphasis. "Yow!
Check out what happens when you twiddle the foo option on this
display hack!" Compare gurfle.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.