To walk with a vain, pompous bearing, as with head erect and chest thrown out, as if expecting to impress observers. (Dictionary.com)
To become turgid: Swell. (Merriam – Webster)
To walk with a proud gait. (Merriam – Webster)
To walk with a pompous and affected air. (Merriam – Webster)
To walk in a proud way trying to look important. (Cambridge Dictionary)
Someone who struts walks in a proud way, with their head held high and their chest out, as if they are very important. (Collins Dictionary)
A strut is a piece of wood or metal which holds the weight of other pieces in a building or other structure. (Collins Dictionary)
Gorilla with a human-like strut likes to keep his hands clean, zoo says.
Strut the Mutt. Dog walking.
Get up, Fresh out Pimp Strut Walking.