butterbottom 

A lubed up asshole.

There is nothing better than a first time butterbottom.

butterbottom by TehTiger June 24, 2008

Mr. Butterbottom 

A man with a well-shaped derriere that is as comfortable as a pillow so his partner can put her head there to sleep.

"I bet Mr. Butterbottom is wearing silky panties as a pillowcase today."

Mr. Butterbottom by Peermingle September 8, 2013

BUTTER BOTTOM 

BUTTER BOTTOM REFERS TO SPREADING BUTTER ALL OVER A GIRL BEFORE YOU EAT HER OUT. DERIVED FROM THE FACT THAT YOU LIKE TO SPREAD BUTTER ALL OVER YOUR TOAST BEFORE YOU EAT IT AS WELL

IMA HAVE ME A TASTY BUTTER BOTTOM TONIGHT!

BUTTER BOTTOM by DOYON February 2, 2015