butt flute 

The act of putting different fingers over your anus while farting.

Little Johnny can play flight of the bumble bee on his butt flute!!

butt flute by Junior June 20, 2006

Junction City Butt Flute 

The Juction City Butt Flute (JCBF), is a primitive musical instrument, that can be easily made by simply inserting two blades of grass into one's anus. When the musician farts, the hot gas causes the blades of grass to vibrate, which generates a "tooooooo" sound. The pitch and cadence of the sound is a function of the quantity and moisture content of the fart expelled, as well as the forcefulnes of the expulsion. It is widely believed that the JCBF was invented in Junction City, Kansas by street urchins in the 1970s.

Ma: "dinner's ready"
Son: "toooooooo "
Pa: "Goddamnit son, quit playin' that Junction City Butt Flute!!!!"

Junction City Butt Flute by Big nad August 3, 2018

Butt-Fluencer 

An individual, mostly female, (and others who are not actually of the female gender but identify or believe to be one or more of the current genders) who captures still photographs mainly of their very appealing and alluring gluts for social media clicks, likes, product placement and other ways to generate income on the strength of their butt.

"Ana is a butt-fluencer who has over 100,000 likes on Instagram."

Butt-Fluencer by El Gran Tommy September 12, 2022

buttflustered 

To become ridiculously overoutraged over some seriously petty, picayune shit.

Sheldon gets all buttflustered whenever someone takes his space on the couch.

buttflustered by Charlie Chan November 3, 2013

Buttfluencer

A combination of butt and influencer.

A person (usually a girl) who posts fitness related content on social media, primarily Instagram, pertaining to be an influencer, but where the picture or video on their post is mostly about their butt in tight fitting clothing. Often tries to demonstrate how to do an exercise, but the emphasis of the visual materials is more on their butt and less on the exercise itself, often to the detriment of what they're trying to demonstrate.

Most female fitness content on Instagram is just buttfluencers.

Buttfluencer by brappzilla April 11, 2023