Thread Yo momma was a trucker

OK, now that we've got the instruments and imbibements figured out, can we at least finish the gosh dang chorus?
 
I've got an old IDE drive full of old stuff that I'm unloading onto my NAS.

Came across this in a text file. An unfinished country song that me and my brother wrote in 1996. There's chords and a guitar solo that I came up for it, but we never could get the chorus figured out.

YO MOMMA WAS A TRUCKER

Verse #1:
Drivin' down the highway, hairy arm hangin' out the side
She's yo big fat momma and she's goin' on a highway ride
With cowboy boots and a big navy anchor tattoo
Ya better watch what ya say 'cause she might get nasty on you

Chorus:
'Cause yo momma was a trucker, drove a big bad ass peterbilt
Weighed five hundred pounds, stank enough to make the flowers wilt
...? (couldn't figure this shit out)
and it's a real big shame that a trucker was a momma to you

Rest of the verses:
She was eatin' at a truck stop when they started makin' fun of her beard
So she grabbed one by the throat and she smashed 'em with a bottle of beer
Buddy's friends ran to help and they started a big roadhouse brawl
But yo big fat momma ended sittin' on top of 'em all

She was speedin' one day doin' 80 on the route 52
Smokey caught her on the radar and he chased her with the red 'n blues
He pulled alongside and told her to slow down and yield
But yo momma hawked a loogie and it smashed through the car windshield

She looked out the truck window, saw a sign and she said HORRAAYY
'Cause it was a restaurant with an all you can eat buffet
It was at this time yo momma done gone and met her fate
'Cause she couldn't stop eatin' and she choked to death on the plate.

Anyone else have old dumb shit to share? Or can fill in that chorus?
Chorus help:
"Cause your momma was a trucker, drove a big badass Mack
She weighed a ton, her hair in a bun, smelled just like a dying yack.
She fucked her way from Tukamcaree all the way to Tennessee
She saved up the cum in the middle of her bum
To plant it in the banyon tree"
 
The song is missing any part about how the listener came to be.

Guessing some poor hitchhiker climbed aboard her truck, passed out from one of yo momma's farts, and woke up underneath her.

But I figured this song would have some spoken word bits detailing all that.