Every kid has a special vocabulary borne of twisted consonants and mixed up vowels...
For example, in daughter-speak:
Frimp - Shrimp, as in frimp n cheese pizza.
D-We-D - DVD. Incidentally the first D-We-D we owned was Freck.
Ha-capes and Hadacados - Pancakes and avocadoes, not eaten together of course. Although that sounds kind of good, actually...
From my brother's mouth:
Feet Keener - Street Cleaner, which passed by our house in Toronto regularly and scared the bejeezus out of him.
Fruck - Truck; most exciting was the Fire Fruck!
My sister's vocab:
She-It - I know what you're thinking. We thought my brother had taught her to say it. Then we realized she was saying "See it".
Babin' suit - Bathing suit. During one of her regular wardrobe changes she was known to strut out in her babin' suit.
I don't recall too many weird words from my childhood, although I'm sure there are a few. My aunt always remembers how articulate I was at age 3 when she asked me what I was drawing: "Auntie Le-o-na, I'm trying to con-cen-trate!" And my other aunt, who was sniffing my neck in the car, "Auntie Janet, you snucked all my perfume!" And to this day, my mom always wonders what I was dreaming about when I woke up screaming, "Carbitis carbitis!"
These are the things that will follow you around forever.