My daughter uses the word Romantical and I have picked that up, too.
When I was a teenager my friend's boyfriend was disgusted by something and said, "That is so grosstech!" I like that much more than grotesque.
When we need lip balm we say that our chips are lapped. Ok, well, I say that. And maybe my sister does.
And one time a kid, (when I was a kid) was in serious distress, but we were laughing instead of caring because she was holding her eye saying, "Ow, my allbye, my allbye!"
I frequently make up words when in a swearing state of mine. But Consarn-it works well. Dad-blame-it, does too. "What in tarnation?!" I say "Dagnabbit", but my boy says "Dangrabbit." I don't swear like a sailor. I swear like a miner.
Or a baby. I sometimes say poo poo instead.
We have all the cute little things our kiddos used to say, too. My girl called water "nanu" and girls "gores." My boy had a problem with g's and d's, so daddy was "gaggy" and dog and God were both "gog." Grandpa wasn't real thrilled with being called "crap-o" but I thought it was cute.
What about you? Have any unique words?