“Female wanted; must have your own pub. Apply with inn”

Many want-ads say “apply within.” “Friend reqired for drink fun: Apply with Inn” is a joke that was posted on Twitter on August 20, 2010.
 
A joke included in Jokes for Blokes: The Ultimate Book of Jokes not Suitable for Mixed Company (2011) by Llewellyn Dowd and Phil McCracken is:
 
“Female wanted, must have your own pub. Apply with inn.”
           
 
30 November 2009, The Herald (Glasgow, Scotland) “The Diary” by Ken Smith, pg. 13:
Apply with inn
NIGEL Robson spots a Christmas poster outside a kirk in Greenbank, Edinburgh, which reads: “Carpenter from Nazareth needs joiners”.
 
Twitter   
Paul Harper
@h4rpski
friend reqired for drink fun: Apply with Inn.
11:14 PM - 20 Aug 2010
 
Google Books
Jokes for Blokes:
The Ultimate Book of Jokes not Suitable for Mixed Company
By Llewellyn Dowd and Phil McCracken
London, UK: Ebury Press
2011
Pg. 202:
Female wanted, must have your own pub. Apply with inn.
 
Twitter
Tomas ‘the sandwich enjoyer’ Shore
@M0by_Duck
Wanted: a pub, apply with inn.
2:30 PM - 29 Mar 2012
     
Twitter
Mark Alefounder
@Ind_Broker
Female wanted. Must have your own pub. Apply with Inn 🍺🍻
3:26 AM - 26 Mar 2013
 
Twitter
Shit Jokes
@ShitJokes
Female wanted; must have own pub.
Apply with Inn.
2:57 PM - 3 Oct 2017
 
Twitter
Shit Jokes
@ShitJokes
Female wanted; must have own pub.
Apply with Inn.
12:36 PM - 13 Jan 2018
 
Twitter
Ron
@upminster13
Female wanted; must have own pub.
Apply with Inn.
2:45 AM - 8 Jun 2018