What nonsensical words do you like to use in your not so everyday speech?
Which is funny as the word combobulate is a back formation from Discombobulate.
back-formation:
A term formed by removing an apparent or real prefix or suffix from an older term; for example, the noun pea arose because the final /z/ sound in pease sounded like a plural suffix. Similarly, the verb edit is a back-formation from the earlier noun editor.