On March 5, 1919, cartoonist W.K. Haselden published a comic in the British newspaper The Mirror, illustrating what the world would be like if telephones were portable.
This is a pocket telephone, not a pocket computer, which is what we actually have now.
These problems were why the vibration feature was introduced.
I remember being a tween watching Regis & Kathy Lee at my Grandma’s and they were talking about a “vibrating cell phone,” and Regis was all like, “now what could you possibly need it to vibrate for?? 😳”
It's a bit of English slang that fell out of use decades back. It's an endearing way if refering to a small child. It fits perfectly with the age of the comic.