Top definition
Act of sticking ones finger in ones rectum, at minimum two knuckles:
proceeding to dunk or stir said finger in the drink of an aquaintance.
Can be used on friends, enemies, or even family as well.
That fat ass doesn't know i rusty dunked his cloudy limon earlier at the bar.
by Rexual B. January 06, 2009
Get the mug
Get a rusty dunk mug for your father James.