runs like butter 

1) Something/someone that works efficiently

2) The act of performing a task in a flawless and smooth-like manner.

3) It just works

4) melted butter

"Dude, my new macbook pro is so effin sweet, it just runs like butter."

"The Apple Store in Tice's Corner...runs like butter."

"Yo man, this girl...she did what she was doin so good...i was just like...'it runs like butter'"

runs like butter by Butterboii February 21, 2009