Can anyone identify late 70s (I think?) song?

Can anyone help me identify a song?
I've tried dozens of lyric archive websites, but have had no luck...

The song in question has a lead male singer with an echo on his voice (or close-harmony accompaniment) who calls out a line and then is responded to by another male singer (or singers) in falsetto. It sounds like a novelty song, from the late 70s (though that's just a guess). The music in the background sounds electronically generated (late disco?) with a heavy synthesised drum beat.

Lead: […song starts (on the recording I have) midway through the line…] on the door
Falsetto response: […Can't make out the start of the line…] evermore
Lead: Nick Knack Feeling Fine
Falsetto response: Do the [Duchess? Unsure but sounds like it…] one more time
Lead: One Two Three […and then the tape is turned off…]

Any help would be really really really appreciated...

Sounds like "The Bump" by a group called Kenny.(commonly mistaken to be by the Bay City Rollers) The bit you think is duchess is actually " do the bump just one more time" It was early to mid seventies I think.

Hope that helps, lol I had to register just to reply so if it is let me know.

LV

Heres the lyrics

One
two
three Bump! One
two
three Bump!
There's a new dance that is going around
Called the Bump
do the Bump.
You can do it to the rhythm of that rock'n roll sound
It's the Bump
do the Bump.
Hey
hey hideho here we go
nice and slow.
Hey
hey hidehi standing by your baby's side.
Hey
hey hidehe count it out along with me.

One
two
three Bump! One
two
three Bump!
(Come on everybody
do the Bump!)

There's a new dance that is going around
. . .

Knick-knack paddy wack now you're standing back to back
Knick knock on the door bump your baby a little more.
Knick-knock feelin' fine do the bump just one more time

One
two
three Bump! One
two
three Bump!
There's a new dance that is going around