Ballcock.
Stop it. Just stop it right now. I know, I know. I’m awful. But it’s not what you think, dammit! You’re the one with filthy mind. Shame on you. A ballcock is actually the most mundane object you can imagine. It’s a piece of plumbing equipment, a floating ball that controls the water level in a tank. So there.
The problem is that this perfectly innocent little word sounds very, very naughty, which is of course due to all the well known ribald associations of the words that make up this compound noun. Just reading this word causes the corners of one’s mouth to curl up in a smile.
And I think that’s wonderful. This word makes people happy.
Random Misanthrope 
Sounds like someone needs a plumber with a strong and dependable ballcock 🙂
Hola! I’ve been following your web site for some time now and finally got the bravery to go ahead and give you a shout out from Atascocita Texas! Just wanted to tell you keep up the good work!
Amazing blog! Is your theme custom made or did you download it from somewhere?
A theme like yours with a few simple adjustements would really
make my blog jump out. Please let me know where you got your theme.
With thanks