TL;DR;
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Has 'Me and whoever' long become acceptable usage in informal speech?

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In the comments on [this answer on ELL](https://ell.stackexchange.com/a/67452/2704), I corrected the usage of "me" instead of "I".

> 
> "My boyfriend and I.. " 
> 
> 
> 

However, the original answerer1 claimed:

> 
> in informal speech 'Me and whoever'2 *has long become acceptable usage*. I think we've gotten over that one now :)  
> 
> Emphasis mine
> 
> 
> 

Fumblefingers is "fairly relaxed about such things" as they mention [here](https://english.stackexchange.com/a/223918/21740), however a sample size of 1 is not really authoritative. Most other answers I found both on ELU and other arbitrary Google searches seem quite set on upholding this rule rather than relaxing it.

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This [ngram](https://books.google.com/ngrams/graph?content=I+and+my+friend+are%2Cme+and+my+friend+are%2Cmy+friend+and+I+are%2Cmy+friend+and+me+are&case_insensitive=on&year_start=1950&year_end=2010&corpus=15&smoothing=3&share=&direct_url=t1%3B%2CI%20and%20my%20friend%20are%3B%2Cc0%3B.t4%3B%2Cme%20and%20my%20friend%20are%3B%2Cc0%3B%2Cs0%3B%3BMe%20and%20my%20friend%20are%3B%2Cc0%3B%3Bme%20and%20my%20friend%20are%3B%2Cc0%3B.t4%3B%2Cmy%20friend%20and%20I%20are%3B%2Cc0%3B%2Cs0%3B%3BMy%20friend%20and%20I%20are%3B%2Cc0%3B%3Bmy%20friend%20and%20I%20are%3B%2Cc0) seems to claim the opposite. The "correct usage" seems to be growing.

Is the ngram biased as its corpus is published works and probably less informal?

[![enter image description here](https://i.stack.imgur.com/DpHeA.png)](https://i.stack.imgur.com/DpHeA.png)

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Have we really got over it? It seems that there are a good deal of people who are resistant to the change in my quick search but maybe I'm not looking in the right places.

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1. A clumsy word to my ears, but apparently a [real one](http://www.thefreedictionary.com/answerer)  

2. I'm dying to change this to "me and whomever"!