butterknifing 

The act of spreading ejaculated semen on a females tits using your cock. Akin to spreading butter on rolls.

I unloaded my cum all over her huge tits, then started butterknifing those knockers.

butterknifing by joebobusa22 April 10, 2010

Butterknife 

Sneaking up behind someone and rubbing the thumb-side of ones hand in a smooth upward motion between said person's butt crack.

I butterknifed your mom.

Butterknife by ALB_B November 5, 2009

butterknife 

A move preformed when jumping into a pool. No specific movement involved, rather flailing of the limbs, and yelling "BUTTERKNIFE!!". Originally created as a subdivision of the manuver The Jack Knife.

Austin busted a sick ass Butterknife!

butterknife by asdubgiaudgfiua December 24, 2005

Butterknifing 

The act of spreading rumors; To spread a rumor

I heard that fucka was butterknifing about you and Eva...

Butterknifing by Unko June 21, 2006

Butterknife 

Utensil Used To Pretend To Kill Yourself

I'm Gonna End My Life..Gotta Go Find A Butterknife...Cut...Cut...Cut...Drip...Drip...Drip...Bleeding...Moans....Thud...Hits The floor Dead! All Because Of A Butterknife I Am Dead!!!

Butterknife by Tatume05 June 17, 2003

butterknifer 

taking a shit so long that one is unable to flush it down the toilet, thus requiring a butter-knife to cut it into smaller pieces in order to flush properly.

Dude, I've been holding it in all day and just dropped one hell of a butterknifer.

Gary, you really shouldn't be eating a box of granola bars a day, you might clog your toilet with all the butterknifers you probably take.

That butterknifer is over 14 inches long! Damn!

butterknifer by Rockit July 24, 2008

Butterknife 

Another name for a 1-iron golf club.

Tiger used to be able to crush the old butterknife. Now he can't hit it to save his life.

Butterknife by yakalot June 17, 2013