Substance that results from the mixing of semen and vaginal fluids that rolls down the nut sack and grundle after unprotected sex. Once mixed, if left unattended, a sticky residue will result on the nut sack and grundle with a profound citrus like smell.
Fuck man, wash up after gettin some I can smell your duck butter from over here.
by MikeAllen September 01, 2004
the name of a product, used in the lubrication and assembly of hub and spigot pipe. applied to the inside of a gasket that has been placed inside of a hub end and on the outside of the spigot end prior to joining to ease the process along. duck butter itself is comprised of water soluble vegetable shortening.
pass the duck butter and grab the pry bar, we're getting this done today.
by Alpha Raptor July 21, 2008