On the Tonight show many years ago, Johnny Carson held up an envelope from the Publisher’s Clearing House Sweepstakes that had been sent to the Rheumatoid Association of Mobile (Alabama). Somewhere along the way the name got abbreviated, so that the envelope actually said: “THE RHEUMATOID ASS MOB HAS WON $10,000,000!” 
Master, from the urban dictionary.
I was going to say Master’s Degree, a show mock amazement there even was an academic program for it.
But then I recalled Master Lock, and that seemed a much better… fit.
Usufruct
Polling the electorate.
Fokkers
Pork loin…
I’ve seen it misspelled as “pork lion”, which is either pretty unappetizing, or, taken as a directive, even dirtier sounding.
Dumas.
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Kant.
Fricative, in linguistics. Especially a uvular fricative.
So I was at the restaurant, slowly masticating. But they showed my the door when other guests noticed my eructation.
Even worse: Before the great fricative shift, they were pricatives.
Effable/ineffable. It’s not the ability to be “effed” or not. 
Coonass; Refers to the Cajun inhabitants of southern Louisiana. I have seen bumper stickers with the slogan “Made in Louisiana by Coonasses”.
The Kia Sportage.
England’s placenames are the best for this. My favorite is “Kentish Town”. (“Shitterton” doesn’t technically count because it, unlike most dirty-sounding placenames, actually does mean “town near the place used as a shithole”.)
Labial fricative
Mother liquor
Hortonite
And today i saw a Bung Borer
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Rejigger
Shub-Niggurath (for all you Lovecraft fans out there)
Do you play the Sackbut?
It’s an early Trombone.
What’s better? To play with your Sackbut? Or to be a Tromboner?