The action of taking a dump, while eating a Wendys* Baconator and getting your dick sucked. Enjoyed usually on sunny days, either inside a home or porta potty.
Yesterday, while receiving a blumpkin, Tom threw Fred a baconator and the blumpkinator was born.
While getting a blumpkin, just before you ejaculate you stand up pushing the girls head into the toilet bowl. Then you ejaculate on her back and dump on her head.
I gave Ricky a blumpkinator last night, and I stillcant get the shit out of my hair.