dirty butter 

Blowing a load in a girls colon during anal sex, then getting her sister to come over and drink it as it seeps out.

I gave them the dirty butter

dirty butter by demasta September 2, 2010

Dirty butter 

A young man who has tendencies towards perversion or sleaziness.

Northern Ireland, L'Derry.

'See your man over there? He tried to shag my friend's dog - the dirty butter!'

Dirty butter by McGrots September 9, 2008

dirty butter 

The act of fisting a female while milk is in her vagina. The arm acts as the churner while the vagina acts as the churning bucket. Also, I hope most of you can realize this really doesn't make butter.

The chick is this video makes some dirty butter.
Warning: 18+ video and quite sick and oddly funny http://www.redtube.com/6176

dirty butter by Kriegenmeister August 19, 2008

dirty swedish butter 

Butter smuggled from sweden to norway during the great butter shortage of 2011.

Give me some of that dirty swedish butter for my friggen sandwich!

dirty swedish butter by jonasbeaver December 25, 2011

Dirty Butterfly 

When a tiny bit of poop comes out by accident and then smears on the inside of the butt cheeks. If you pull the butt cheeks apart the poop smear resembles butterfly wings

He was so scared he gave himself a dirty butterfly

Dirty Butterfly by Elanor March 14, 2008

DIRTY BUTTERFACE

The act of fucking a butterface doggiestyle and when she turns arounds to make eye contact with you with her ugly ass face, you spray her with pepperspray or mace so you can enjoy yourself as much as possible.

Her face was so ugly, I could only Dirty Butterface her.

DIRTY BUTTERFACE by SP WD August 4, 2008

Dirty Butterfly 

The Act of ejaculating onto a woman's mustache (or ''Caterpillar'') thus allowing her to wipe away the applied semen, similar to a metamorphosis of a caterpillar to a butterfly.

Dan: I blew it all all over Susan's hairy upper lip.

Tony: Can you not say that about my mom!?
Dan: Fine but theres nothing wrong with giving a girl a Dirty Butterfly.

Dirty Butterfly by Avpmaster132004 December 4, 2010