DirtyDan 

sleezey, trashy, underhanded, no good, con artist

You are a dirty-dan.

DirtyDan by Dan September 14, 2003

DirtyDan 

Geek loser nerd fag etc etc

Also looks something like Fanny Piles.

U Dirtydan.

I was talkin to this kid....was blatently a dirtydan

etc etc

DirtyDan by owned May 23, 2003

dirtydan 

a dirtydan is when just before you shoot your wad you pull out of the amusement park and slam it in the sewage plant.

dude ! after I gave her that dirtydan she is still having trouble with her memory , she keeps calling me daddy!

dirtydan by dirtydan67 May 22, 2019

DIRTYDAN’s Train’s 

Dude who collects tyco stuff and actually knows what he’s doing when “Restoring” model trains.

DIRTYDAN’s TRAIN’S makes the best content on all of YouTube

DIRTYDAN’s Train’s by Rtr is overrated July 22, 2021

Dirty Dan 

Dirty Dan is the little bitch who keeps calling you Pinhead even when you specified that you were the real Dirty Dan. He's also the one who hit you on the head with a fucking shovel.

*Dirty Dan attacks with shovel!
*It is super effective!
*Pinhead attacks with a nail bat!
*Nothing happened

Dirty Dan by stonedweeb December 29, 2017

Dirty Dan 

not you

you'll never be dirty dan, because I'm dirty dan

Dirty Dan by CrypticMemory January 11, 2020

Doing the Dirty Dan 

The act of having sexual intercourse with a woman while she is bent over the toilet vomiting.

Christina was so drunk, that she was throwing up into the toilet. Dan came from behind, saw the excellent opportunity, and immediately commenced in doing the Dirty Dan.

Doing the Dirty Dan by bobisocks April 8, 2012