puppy
In 1997 or so, Yahoo! chat made it so that (for a few days, anyway) if you typed "blow job" into the chat window, what would appear on the screen was "puppy."
clueless person: "I didn't type puppy! I typed puppy!" smart person, saying the same thing for the millionth time that hour: "If you type "bl0w j0b" (with 'o's instead of '0's), it comes out "puppy.""
By Rachel aka bandcampgirl183