When you are giving a blow job to a trump look alike or trump himself, in a port-a-potty while he is taking a shit.
Dan: honey should I wear my trump get up tonight?
Susie: what for?
Dan: well since it's our anniversary I thought maybe you could finally give your dear husband a trumpkin blumpkin!
Susie: damnit Dan I told you I would blow you while dressed as trump, but I'm drawing the line at Port a potty and you taking a shit... You just ate a bean burrito for gods sake.
Dan: it's all I want for our anniversary though darling
Susie: and all I want is a new husband.
When you get your dick sucked while taking a shit while smoking a big fat blunt.
Guy One: Dude guess what!?!
Guy Two: What?
Guy One:My girl gave me a Green Blumpkin!
Guy Two: Mann thats sooo disgusting but soooo awesome *fist pump*
The act, practice, or habit of performing or participating in a blumpkin in space.
True to her name, Sally Ride was a frequent participant in that variant of blumpkins known as the space Blumpkin - an act made more wistful and gainfully frissonable by the inclusion of vacuum toilets and space astronaut diapers.
A sex act in which you are taking a shit on the toilet and you are giving a blowjob to someone who is of direct relation, ie cousin.
My mom walked in while I was giving Brian an Alabama Blumpkin. I wasn't invited to the next Easter.
When you’re giving someone a blumpkin and you reach around and scoop up a little shit to lube the balls.
Hey Carol! We just had Mexican food so tonight would be the perfect night for a blumpkin scoop!
A variation of the traditional Blumpkin, performed while cleaning one's undercarriage on a Bidet.
Always a classy gentlemen, Martine opted to forego the often dirty Blumpkin for the more hygienic French Blumpkin. Stacey was appreciative of the fact she didn't have to taste his shit.
Performing analingus while your lover consumes an entire meat-lovers pizza and watches TV.
"Our therapist suggested trying new things in the bedroom to spice up our marriage. Lenny wanted to try the chubby blumpkin. It was kinda gross...can I borrow your toothbrush?"