I'dn't 

Contraction of I would not or I should not.
I'd (I would/should) + n't (not)

I'dn't want that here.
I'dn't be there.

I'dn't by Nobe Awdy July 22, 2009

I'dn't 

To have not done something; an abbreviation of "I had not", coming from the abbreviations "I had" (I'd) and "had not" (hadn't).

Pete - "I think you should study chapter 12 for your Humanities exam."
Rachel - "Good idea, I'dn't thought about that chapter."

I'dn't by Pete McDonald February 24, 2003

I'dn't've 

Contraction of 'I would not have'.

Pete: "I kicked Paul in the butt."
Rachel: "I'dn't've done that if I were you!"

I'dn't've by Mr Catastrapostrophe July 29, 2006

I'dn't've 

Contraction of "I would not have".

I'dn't've coffee right now.

I'dn't've by ÞÆÖÐÞÆÖÐÞÆÖÐÞÆÖÐÞÆÖÐÞÆÖÐÞÆÖÐ January 10, 2024

who'd'ven't'f'i'dn't've'nt'f'i'd'ven't'f'ihavn'tn't'd'i've 

A lengthy contraction. Use it your own way, who knows what it actually means. It’s too rusty to translate. The word can be found on Reddit, Tumblr, and probably more, most likely originating on social media.

Mike: who'd'ven't'f'I'dn't've'nt'f'I'd'ven't'f'Ihavn'tn't'd'I've-
John: Mike, shut up, we’re in an interview

who'd'ven't'f'i'dn't've'nt'f'i'd'ven't'f'ihavn'tn't'd'i've by SomebodyNamedFjord April 3, 2020

Y'all'd've'd'i'dn't 

A contraction for the phrase "You all would have, had I had not."

Did you all drink my Mountain Dew? Because I'm sure y'all'd've'd'i'dn't.

Y'all'd've'd'i'dn't by The Dew Dude August 26, 2021

i'd'n't

I would not

Person 1: I'm gonna steal some money
Person: I'd'n't if I were you

i'd'n't by rairai_pinkeye June 29, 2023