Defenseful 

The act of having a defense so dutiful that you become full of it

I am very defenseful of my position as a vegan.

Defenseful by Sharkweeker January 28, 2019

defensefullness

Another term used to describe how a not boyfriend and a not girlfriend are acting towards one another.

“Dammit Tess! I’m sorry for my defensefullness over these past few weeks”

defensefullness by MazdaMatt December 13, 2019

defenefuck 

Amalgamation of Definitely and Fuck (the mild curse word), Often used when the user wants to communicate a sense of extreme urgency about something.

You should defenefuck get your dog to the Vet immediately.

defenefuck by AS04 July 11, 2017