Sounds like one of the verses from '16 stone'.

SIXTEEN STONE
(Hazel Absalom)

She weighs 16 stone and what do you get,
A whole lot of woman and that's a fact.
Take a closer look, you must agree,
There's no sharp corner on a woman like me!

You can't cuddle up to a bag of bones,
If her ribs stick out, leave her well alone.
We've a soft welcome for a man in need,
We're surely built for comfort if not for speed!

Cho: She weighs 16 stone and what do you get,
A whole lot of woman and that's a fact.
Take a closer look, you must agree,
There are no sharp corners on a woman like me!

Well if you've seen more meat on a greasy spoon,
She won't keep you warm, get rid of her soon.
So come on guys, if you're down in the dumps,
Better get your arm around a gal with bumps.

Well the magazines say be skin and bone,
But big girls never have to sleep alone,
We don't disappear when we turn on our side,
And there's plenty of suspension for a bumpy ride

Well if you see us coming better step aside,
A lot of men didn't and a lot of men died.
One gives you desire, the other a thrill,
If the tall ones don't get you then the small ones will!

By Liz the Sqeak?
@feminist
filename[ STONE16

Then there's the parody I wrote....

All Around My Fat
Lyrics by: Penny Ward (submitted by Micca)
Tune: All around my hat (Traditional)

Chorus:
All around my fat
I will wear the Playtex Girdle
And all around my fat
For an evening and a day
And if anyone should ask me
The reason why I'm wearing it
It's all for my true love
Who thinks I'm built this way

Verse 1
Take half a pound of talcum
And a small jar of Vaseline
A shoehorn comes in handy
It's the biggest you've ever seen!
You put it all together
And you will plainly see
I'm a different shape completely
And in abject agony

Chorus

Verse 2

The other night he bought me
A small box of lingerie
All frothy lace and satin
The colour of ivory
I went to change and left him
Anticipating hedony
So much for Janet Reger
I can't get them past my knees!

Chorus

Verse3

Fare thee well Weight Watchers
And fare the well the step class
Three stone have I gained
And my waistline I have lost
I'll eat and I'll be merry
Dispense with guilt and calories
I'll stuff the sodding 'F' plan
It's a fry up for me tea!