DH is famous for coming up with random phrases and names for things...
On the topic of "passing gas" (as I was taught to say it as a child) we now say DH has a "butt quack" (because it often sounds rather like a duck quacking...sorry folks...)
"hooty-hoo" is a multi-purpose word that can mean something really fancy, as in "don't you look all hooty-hoo tonight" or "are we going to that hooty-hoo restaurant for date night?". Or it can stand in for "thing-a-ma-bob" as in "could you hand me the hooty-hoo?" or "where did you put the hooty-hoo?"
The TV remote is "Fred" because, in DH's words, "Fred is the guy who gets up and changes the channel for you."
For issues with drivers going too slow or not starting at a green light, we say "it's the vertical pedal on the right - the one with the dust on it." or "gravity can only do so much."
When drivers on a highway on-ramp would come to a complete stop at the end of a ramp instead of speeding up and merging with the traffic, my mom would always say "yield, don't surrender!"
I know there's more, but I can't remember them right now - they're just such a part of my vocabulary I'm having a hard time identifying what's unusual!