Duckzilla

is a big duck, 15 tons and 50 feet high

Giant DuckZilla Attacked My Foot!

Duckzilla by vladrenard December 22, 2008

duckolded 

When you throw bread to a cute little tiny duck and it keeps being stolen by other big macho ducks.

I wanted the duckling to catch the bread I was throwing for it but it kept getting duckolded by all the other big ducks.

duckolded by amumz45 October 17, 2017

Duckbilling 

Standing around pretending/imagining that you are doing something, when you are actually not.

(At a car wash)

Guy1: Why is he taking so long to wash my car?
Guy2: He's just standing there with the windex in his hand.

Guy1: Let me ask him.

Guy1: What are you doing?
Duckbiller: I'm doing your windows!
Guy 2: Why, he's just duckbilling!

Duckbilling by Pussybasher69 May 25, 2013

shit the duckbill platypus

to masturbate, specifically a term for male masturbation of oneself

Vin loved to shit the duckbill platypus while watching the news

shit the duckbill platypus by Prof. Frank VonBlumpington October 7, 2010

Duckzilla

Giant building-crushing duck

Oh no! Here comes duckzilla

Duckzilla by mousier bonjour February 3, 2003

Duckology

Asian TF2 and Geometry Dash youtuber

Yo, do you know Duckology

Duckology by Hero00003 October 6, 2018

duckbill

To smoke a joint when it is down to the roach, since you have to stick out your lips like a duck's bill to hit it.

Yo man, you might get another hit off this, but you just gotta duckbill it

Hey man, you might get a couple more duckbill hits off this, just don't bogart it man.

duckbill by M Rockwell September 15, 2008