What is Porky Twanger?
1.
The 
'I got really drunk last night and ended up in bed with my ex-girlfriend. I was doing her from behind, so I thought I'd give her a porky twanger while I was at it.'
See 
Random Words:
1. 
A Ginormously Large Booty
She got a big ol dookie doo
See badunkadunk, double wide, ass, hiney..