When using a banana as a profilactic and the creamy substance that is created from the banana mush enters the vagina.
Yo bro! I couldn't find a condom the other day so I had to grab a banana and I got that nana butter in her shit.
by Foxyloxyjuice March 10, 2015
Get the Nana buttermug. To be viciously bitten in the genital region by a canine animal, with or without slathering peanut butter on the genitals beforehand.
by PantyPanda April 3, 2021
Get the Peanut Butter-edmug. Roughly 6 hours after eating at a restaurant that cooks with excessive amounts of butter, you wake up with pain and cold sweats, thus having to penguin walk to the toilet so as not soil the bed, and then cracking the porcelain. Think Harry Dunn from 'Dumb and Dumber' turbolax scene.
Holy hell, I had the butter runs in the middle of the night after eating at that hibachi restaurant. I feel sorry for the toilet.
by pizzleboy November 25, 2023
Get the butter runsmug. 
Butters with an S specifically is referring to a pair of Timberlands or Tims. Slang from the north more specifically NewYork.
“Aye you seen them beat up butters he got on?”
“Yea, them shoes look like he done walked 40 days and 40 nights in em’.”
“Yea, them shoes look like he done walked 40 days and 40 nights in em’.”
by Gregorny July 12, 2023
Get the buttersmug. An authentic item or individual that has generic alternatives like margarine, but none really measure up to the original
by theHooniglen August 8, 2020
Get the Buttermug. by pleeaire-rUthere? October 27, 2019
Get the Churning The Buttermug.