“A guy walks into a bar…” is a typical form of what has been called the “bar joke.” An impressionist version is:
 
“A really bad impressionist walks into a bar. The bartender says, ‘Why the wrong face?’”
 
The pun is on the famous “Why the long face?” punchline of the “A horse walks into a bar…” joke. “A really bad impressionist walked into a bar and the barman said: ‘Why the wrong face?’” was posted on Twitter by Roy Manterfield‏ on October 7, 2013.
   
       
Twitter
Roy Manterfield‏
@MumblingNerd
A really bad impressionist walked into a bar and the barman said: “Why the wrong face?”
2:29 PM - 7 Oct 2013
   
Twitter
Know Pun Intended‏
@MumblingPun
A really bad impressionist walked into a bar and the barman said: “Why the wrong face?”
6:41 AM - 10 Feb 2017
 
Twitter
Aadal Shafiq‏
@AadalShafiq
A bad impressionist walks into a bar.
Bartender says: why the wrong face?
#NationalTellAJokeDay
8:24 PM - 16 Aug 2017
     
Reddit—Dad Jokes
A really bad impressionist walks into a bar. (self.dadjokes)
submitted February 19, 2018 by porichoygupto\
The bartender says, “Why the wrong face?”
 
Twitter
keepingitcreel‏
@Keepingitcreel
A really bad impressionist walks into a bar. The bartender says, “Why the wrong face?”
6:07 AM - 19 Feb 2018
 
Twitter
Dad Jokes‏
@DadJokeBinge
A really bad impressionist walks into a bar. The bartender says, “Why the wrong face?”
1:31 PM - 19 Feb 2018
 
Reddit—Dadjokes
Posted by u/porichoygupto March 3, 2019
The world’s worst impressionist walks into a bar.
The bartender says, “Why the wrong face?”