A shorter version of a popular guitar chord made popular by the amazing John Williamson....KING OF COUNTRY!!!
John Williamson:

Waltzing Matilda, Waltzing Matilda
RING-A-DANG
"You'll come a-Waltzing Matilda, with me"
RING-A-DING-A-DING-A-DANG
And he sang as he watched and waited 'til his billy boiled,
"You'll come a-Waltzing Matilda, with me".
RING-A-DANGRING-A-DING-A-DING-A-DANG
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Soft and round like a pussy cat, a whole in the middle and split in two, that's what you call a ring-dang-doo
She made her living off her ring-dang-doo.
by RingDangDoo Expert November 5, 2018
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Ring-Dang-Doo is a nonsense slang word typically used to describe a women's genitals similar to "Pussy".

The word has no etymology and first appeared in a song by Sam the Sham and the Pharaohs but the word also made an appearance in the 2018 western action-adventure game Red Dead Redemption 2 in a campfire song.
Ring-Dang-Doo now what is that? It's soft and round like a pussycat, Got a hole in the middle and it's split in two; And that's what you call the Ring-Dang-Doo.
by KNINE403 March 26, 2019
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The ring dang doo now what is that?
It's soft and round like a pussy cat
Got a hole in the middle and is split in two

Now that's what you call the ring dang doo!
When I was just, a lad you know!
I met a gal from ol' Bordeaux

She had blonde hair, blue eyes too

She let me ride on her ring dang doo!
by Blacknotbeard June 24, 2021
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A bastardization of wang dang doodle the blues song. Could be easily be used as a euphemism for "booty-call on my damn dick".
I'm gonna ring dang doodle sally tonight I think
by juanxpicante November 30, 2021
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to put cell phone in vibrate mode

hold against erect penis while inserting in wet vagina
hey baby,dial my number for a Ring Dang Do
by bucketgut December 25, 2009
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