The Duckburg Challenge 

One must finish having sex before the Ducktales theme song has played all the way through.

Are you up a challenge? The Duckburg Challenge!

The Duckburg Challenge by trollrock June 8, 2015

Felching For Duckbutter 

The two part act of sucking semen out of the anus with a straw while maintaining enough of a vacuum to get the greasy, and sometimes chunky duckbutter that runs along the taint.

Being careful not to miss a drop, and priding himself as a pro at Felching For Duckbutter, Gabe Athouse aimed his straw and inhaled every last drop of the load he left as well as the grimy, nutsack buildup.

Felching For Duckbutter by FupaGunt August 7, 2011

Duckburg 

The slang name of Melvindale, Michigan, U.S.A. A name derived from an underground newspaper called "The Duckburg Times" that supposedly circulated there in the 1960's (?)

What's going on in Duckburg tonight?

Duckburg by sameastherest November 12, 2009

Duckbutt

Nickname given to Sasuke Uchiha of the manga/anime Naruto based on the shape of his hair.

Ugh, ANOTHER fanart of Duckbutt?

Are you going as Duckbutt this Con?

Duckbutt by Asdfghjkl;;;;;; November 8, 2010

duckbutter 

the sweat that accumulates under the nut sack. very very smelly

i dont believe my duckbutter is giving me swamp ass

duckbutter by James Carpenter March 20, 2003

Duckbutt

A depiction of tetrahedral geometry, especially in the discussion of chiral centers

Bromochlorofluoromethane can take on both R and S configurations, depending upon whether the Bromine, Chlorine, and Flourine increase in atomic number clockwise or counterclockwise around the central carbon; the Hydrogen is at the duckbutt.

Duckbutt by TBS_Amelia February 24, 2008

Duckbutt

Nickname given to the Grumman HU-16 Albatross, an amphibious aircraft used for transportation and antisubmarine duties from the late 1940s to the ealry 1970s. Now used by resorts in the Carribeian and the South Pacific as short range island-hopping airliners.

Duckbutt by JonathanChance September 29, 2003