Yes. Hocklywipter. Hoppapitimous... it's a long list.

Yes, I do this a lot. I sometimes mispronounce words the way they ought to sound phonetically, to help me remember how to spell them, like pronouncing all the silent letters and so on. For instance: phelgm (fleg-im), muscle (musk-el), apropos (a prop ohs), receipt (re-seeped) and the like. I'll also add syllables to invent fake word roots, like saying re-sentiment for resentment or counter-propsicle for counterproposal.

On a related note, I've helped countless people learn how to pronounce Joaquin Phoenix's first name by pointing out that is pronounced like quinoa backwards. But then I just go on to pronounce it like jo-AH-queen to be irritating immediately afterwards.

??I commonly say dumb things enough as is; no need to do them purposefully

Chaos instead of "kaos." For some reason I can never remember that!

Okey.

Always and forever have done this!!
I do it with names too. I have tried to modify this to not be microaggressions and have them be my quirkiness not an insult.

I usually do this to narrowly avoid vulgaritys though it's obvious what I would have said other wise.

Fumb Duck (ery)
Sumb Dhit (ery)
Pittle Lecker

etc ...

I used to work with a guy who was from Cincinnati. From here, that's known as "up North". Thought he had some strange pronunciations which I embraced as my own, as I'm sure other former co-workers did also. We were certainly using his words at the time. Old habits die hard.

Examples:
Egg = agg. Pretty much any "e" was pronounced as some form of "a". He didn't seem to have strict rules. A guy who we worked with walked with a limp. My co-worker popped up with "Here comes ol' pag lag (peg leg)." His girlfriend "Penny" was "Panny".

Thought it was just this guy until one day while watching a baseball game on TV, the announcer, Tony Kubek, called a play where the batter got hit in the "albow" (elbow). Tony Kubek is from Milwaukee, I believe.

Remember telling a little one:
Say eucalyptus!
He answered back: Icalyptus.

To fans of Trailer Park Boys, these are known as Rickyisms.

'Magick' and only that spelling, I pronounce as 'mug-ick.'. It's a joke from my favourite podcast, The F Plus.

Must is cus must ain't don't sound right.