“Communication is key” is a saying; it doesn’t refer to an actual key that opens locks, but there are jokes. “If communication is the key…we are locked out” was posted on Twitter by fadumpt on July 25, 2008. “If communication is the key, why am I locked out of the house again?” was posted on Twitter by Anthony Saffer on March 8, 2015.
 
“If you’re locked out of your house, try slow talking with your door. Because communication is key” was posted on Reddit—Jokes on September 27, 2019. “If you ever get locked out of your house… Talk to your lock calmly, because communication is key” was posted on Reddit—Dadjokes on November 25, 2019. The joke has been printed on several images.
         
   
Twitter
fadumpt
@fadumpt
If communication is the key…we are locked out…lunch and a new stop.
12:36 PM · Jul 25, 2008·Twitter SMS
   
Twitter
Dante’ Parker
@DanteSocial
Communication is key. And we are locked out
12:41 PM · Aug 10, 2009·Twitter Web Client
   
Twitter
DGW II
@hollagraphics
Communication is the key. Are you locked out?
9:55 PM · Oct 21, 2009·Twitter Web Client
 
Twitter 
Anthony Saffer
@AnthonySaffer
“If communication is the key, why am I locked out of the house again?” (#branding #failure #quote)
6:01 PM · Mar 8, 2015·Twitter for Android
 
Reddit—Jokes
Posted by u/Dragonus_Aang September 27, 2019
If you’re locked out of your house, try slow talking with your door.
Because communication is key.
 
Twitter
hari_Scotch
@Homharivarma
If got locked out of ur car with the key inside , try to slow talk with the door , because communication is the key . Fight me
6:46 AM · Sep 27, 2019·Twitter for iPhone
   
Twitter
Naren Menon
@NarenMenon1
If you’re locked out of the house try to slow talk the door knob because communication is key 😂
#WhatsApp #joke
11:27 AM · Sep 27, 2019·Twitter for iPhone
   
Twitter
Miss Matty Angel 😊
@MattyAngelNZ
If you ever get locked out of your house, talk to your lock calmly
Because Communication is key
1:39 AM · Sep 30, 2019·Twitter Web Client
 
Reddit—Jokes
Posted by u/voracread October 6, 2019
Talk to your lock calmly if you get locked out,
because communication is key.
       
Twitter
📷💄KARO’S EFFECT
@Osakaromen
“If you ever get locked out of your house, talk to your lock calmly because Communication Is Key”
3:52 PM · Oct 7, 2019·Twitter for Android
 
Twitter 
King Yeahmi
@kingyeahmi3
If you ever get locked out of your house, talk you your lock calmly. Cos communication is the key.
2:15 AM · Oct 10, 2019·Twitter for iPhone
 
Twitter
Success 🍥
@D_empiricist
If you ever get locked out of your house, talk to your padlock calmly, because Communication is ‘Key’!!
7:13 AM · Oct 19, 2019·Twitter for Android
 
Twitter
ѕнα∂ყ™ ➐
@6illeh
If you ever get locked out your house, talk to your lock calmly because communication is key.
10:05 AM · Nov 20, 2019·Twitter for iPhone
 
Reddit—Dadjokes
Posted by u/pm_me_your_taintt November 25, 2019
If you ever get locked out of your house…
Talk to your lock calmly, because communication is key.