Smashing Blumpkin 

After receiving a fine blumpkin from your partner, make them bite their teeth on the toilet rim and then stomp on the back of their head with your foot.

"Man, I tried out a smashing blumpkin with this skank last night and she lost her mind at the prospect of this innovation."

Smashing Blumpkin by generalgrizzle January 21, 2010

Smashing Blumpkin 

A blumpkin of great magnitude.

Or could be yelled in state of shock, simular to saying "Holy Shit!" or "Oh, Fuck!"

Brit Accent Guy: "That blumpkin was smashing!"

Pirate: "Aye, Smashing Blumpkin i'twas sir."

Smashing Blumpkin by John Butz August 19, 2004

Smashing blumpkin 

The act of mouth humping a judy whilst taking a dookie.

I was taking a mondo poo and my boo thang was all horny like, "Me so horny, me love long time." So, I had no choice but to give her a smashing blumpkin.

Smashing blumpkin by Pierre Boudreaux April 27, 2017

Smashing Blumpkin 

After receiving a Blumpkin (fellatio while defecating on the toilet), proceeding to place the lucky lady's head on the seat and smashing the lid on her.

I had the worst blumpkin ever. She didn't even swallow the goop. I had to make it a smashing blumpkin to remind her to take her protein next time.

Smashing Blumpkin by Tim Branberries January 31, 2008

smashing blumpkin 

taking a shit on the floor as u receive head from a really fat disgusting girl

"I just had the ill smashing blumpkin last nite with that huge bitch"

smashing blumpkin by goats February 23, 2005

Smashing Blumpkins 

When, in bed, you and a partner (male or female) 69 and simultaneously shit.

Prove your love is true by performing the Smashing Blumpkins.

Smashing Blumpkins by Good Writtenz February 22, 2010