“Honk if you think I’m sexy” bumper stickers have been cited in print since at least 1997.
 
“I have a bumper sticker that says ‘Honk if you think I’m sexy.’ Then I wait at green lights until I feel better about myself” is a joke that has been printed on many images.
   
“I have a bumper sticker that says ‘Honk if you think I’m sexy.’ Then I wait at green lights till I feel better about myself” was posted on X/Twitter by A.i on May 15, 2014. “I have a bumper sticker that says “Honk if you think I’m sexy”  I then wait at green lights ‘til I feel better about myself.  #sickipedia” was posted on X/Twitter by Bob Kostic on May 18, 2014.
   
     
Google Groups: seattle.general
Week 29—Bill Gates Secret Diary
Bill G.
Jul 20, 1997, 3:00:00 AM
(...)
Hey, I forgot to include the bumper sticker on my old Mustang convertible in last week’s list… “Honk if you think I’m sexy.” I am, I am. (The bigger the wallet, the sexier the man.)
 
X/Tiwtter   
Maf
@mafsoldtheworld
@alecs17 I want a bumper sticker that says “honk if you think your grandpa is sexy”
1:20 AM · Apr 2, 2009
   
X/Twitter
Tara Marino
@elegantfemme
just saw a car ‘honk if you think Im sexy’ ha the irony as I blare my horn
8:41 PM · Apr 18, 2009
 
X/Twitter
A.i
@iSpeakComedy
I have a bumper sticker that says “Honk if you think I’m sexy.”
Then I wait at green lights till I feel better about myself.
6:39 PM · May 15, 2014
   
X/Twitter
Saturday Batir
@satibash
I have a bumper sticker that says “Honk if you think I’m sexy.”
Then I wait at green lights till I feel better about myself. 😂
7:18 PM · May 15, 2014 from Torrance, CA
 
X/Twitter
🎗 MOGGY 🎗
@DavidMoggy
I have a bumper sticker that says “Honk if you think I’m sexy.”
Then I wait at green lights till I feel better about myself.
1:34 AM · May 16, 2014 from Motherwell, Scotland
 
X/Twitter
Bob Kostic
@causticbob
I have a bumper sticker that says “Honk if you think I’m sexy”  I then wait at green lights ‘til I feel better about myself.  #sickipedia
4:45 PM · May 18, 2014
       
X/Twitter
Dad Jokes
@Dadsaysjokes
I have a bumper sticker saying “Honk if you think I’m sexy”.
Some days I just stay at a green light until I’m feeling good about myself.
6:05 AM · Sep 28, 2017
 
iFunny
WoJaNi
11 mar 2022
I have a bumper sticker that says “Honk If You Think I’m Sexy.” Then I just sit at green lights until I feel better about myself.
 
Reddit—Jokes
YZXFILE April 5, 2022
I have a bumper sticker that says, “honk if you think I’m sexy”...
I just sit at green lights until I feel good about myself.
 
iFunny
cck709
5 mar 2024
I have a bumper sticker that says “Honk If You Think I’m Sexy.” Then I just sit at green lights until I feel better about myself.
 
X/Twitter
Doc 
@DocAtCDI
I have a bumper sticker that says honk if you think Im sexy.
Then I just sit at green lights until I feel better about myself.
4:30 AM · Mar 11, 2024