Stop sign running: 1940s, Dallas area: "coasting through in second" - definitely obsolete.
Collectives: almost as rare as a crash of the generally solitary rhino, armadillos are an "armada" - I have actually seen two adults together at 2:00 pm - rare enough to see an individual in the daylight.
Kindergarten language: Then if a white bird that follows cattle wins a bug-eating contest, it is a victorious egret?
Voracious readers: I once had a book store (back in the day of free enterprise, before capitalist chains destroyed them). Most niche fiction (romance, mysteries, westerns, SF, etc.) have voracious readers of one (only) of those genera.
Baby talk: Walt Kelly had a character in Pogo comics, a baby "groundchuck", Grundoon, who only spoke in consonants. I have gotten an interesting reaction from even a fussy baby by "speaking in Grundoonese" to them - in an otherwise normal voice. They are first totally confused, then appear to figure it out and break into a broad grin.
One thing you didn't mention about baby talk is the sing-song rhythm. "Iggum boogum diddle wubble...." It's relentlessly trochaic!
On the subject of collective names for animals, I thought this was amusing:
In my family, we've always called rolling through a stop sign a "slow-n-go".
I love "apricity" -- and it makes me think of apricots! I wonder if there's any liguistic connection there?
Why do we speak to babies using high-pitched voices? I read an article about that in Scientific American some time back. Turns out the human ear is most sensitive to frequencies between 2-5 kHz. Babies' ears (because of the diminutive size of resonating features therein) are less sensitive to the typically lower frequencies of an adult voice (Tiny Tim notwithstanding). So mothers learned over time that they get more response to audible stimulation in that higher range.
That might be why we also use a higher pitch when talking to our smaller pets. Probably wouldn't matter to your horse or hippo. 
Interestingly, the (annoying) sound of a baby's crying takes advantage of that too. The average pitch of their crying sound is smack dab in the middle of the ear's sensitivity range. Evolution selected for that, since it evoked attention during times of illness, pain, hunger, thirst, etc.
I have “hermantile†in my vocabulary. While listening to your program, I got wondering where I picked it up. I'm a Navy
Veteran (Submarines), but I think I got it from my father who was a WWII Army Veteran. To
put it nicely, my usage basically describes a senior bombastically chastising a
junior without actual physical harm, but with utmost permanence. In other words - A lesson well remembered or
else! The more I think about it, maybe it was my Mother (WWII wife): " Your Dad is going to go hermantile...."
In reference to "skeuomorph", I hope this picture of a dialable cell telephone comes through.
Thanks for your program, you do your predecessors proud!