an anus with fecal residue that resembles a star or star fish.
Dan had a hard time cleaning out his dirtstar after eating all that spicy chili.
by Dirtstarr December 10, 2013
9 more definitions
the ever popular anus
tongue-punching the dirt star, ie tossing salad
by Sparky Fister July 14, 2003
referencing the anus, looks like a star and is brown or dirt color
Your boss is giving it to ya in the ol' dirt star.
by rectum nearly killed em October 29, 2006
dirtstar- the way an asshole makes a little dirty "star" when "puckered up".
"get your cat's dirtstar out of my face, plz."
by Crowe Basalt April 13, 2005
the small circular pattern left in the dirt from a sitting cat.
dude, that cat just left a beautiful dirtstar in the sand!
by Mr Tallywhacker June 20, 2006