Duck walking 

To waddle around like u take it up the ass a lot

Man he's is definitely the duck walking champ he takes up the whole hallway with his waddle

Duck walking by Dumping loads May 30, 2015

Walking the duck 

Walking the duck is when you are either walking naked (only works if your a guy) or you are going commando and your fly is down...thus your little guy escapes and waddles when you walk.

TIM: Today I forgot to zip up, and my coworkers caught me walking the duck.
WORST DAY EVER!

Walking the duck by Nubman3 May 22, 2009

Wanking like a duck 

Wanking like a duck is a common pun involving the resemblance between the pronunciation of the word "wank" and the cry of a duck.
It means that someone often speaks with a nasal voice.

- Where's my cow? (in a redneck manner)
- Hey man, stop wanking like a duck!

Wanking like a duck by tbop January 10, 2011