“Do your homework or you’ll end up (working) at McDonald’s!” is a parent’s threat to a child. If the child doesn’t do well in school, then he or she will wind up working a dead-end job in a fast food restaurant.
 
“Do your homework or you’ll end up at McDonald’s forever” was posted on Twitter on February 15, 2014. “If you’re in high school right now, don’t goof around, or you’ll end up at McDonald’s like most of my classmates!!!” was posted on Twitter on July 26, 2014.
 
Sometimes the threat sounds more like a treat, as in this post on Twitter on July 21, 2016:
   
ana: do your homework or you’ll end up at mcdonald’s
mccree: if i don’t do my homework we’re going to mcdonald’s
 
This version was posted on Reddit—3amjokes on April 13, 2018:
 
“Son you better buckle down and do your work or you’ll end up at McDonald’s.”
“We goin to McDonald’s If I don’t do my work?!”
     
       
Twitter
Nick Robbins
@NickRobbins27
Replying to @DominicCocco123
@DominicCocco123 Do your homework or you’ll end up at McDonald’s forever.
12:53 PM - 15 Feb 2014 from Michigan, USA
   
Twitter
PREZIDENTIA
@Dez_mafia
“If you’re in high school right now, don’t goof around, or you’ll end up at McDonald’s like most of my classmates!!!”
-Desimaafia
#motivate
12:43 PM - 26 Jul 2014
   
Twitter
UPSlayer
@AlabamerSlammR
Replying to @mmarsh95
@mmarsh95 lmao. One if the teachers who said “study or you’ll end up at McDonald’s” XD it happened to us all
6:44 PM - 22 Oct 2014
   
Twitter
Irula
@rulakong
Growing up my teachers always said. Go to school or you’ll end up at McDonald’s. That’s good enough warning.
11:29 AM - 20 Mar 2015
   
Twitter
aristotle
@frijoIero
ana: do your homework or you’ll end up at mcdonald’s
mccree: if i don’t do my homework we’re going to mcdonald’s
7:36 PM - 21 Jul 2016
   
Twitter
✨ Nev ✨
@chuuyaholic
Jumin: You better buckle down and do your work or you’ll end up at McDonald’s.
Yoosung: We’re going to McDonald’s if I don’t do my work?
12:00 PM - 31 Aug 2016
   
Twitter
Spicey Tortilla
@JerricohH
Dad-“You better work hard and get your school work done or you’ll end up at McDonald’s”
Me-“We going to McDonald’s if I don’t do my work? Bet.”
9:43 PM - 19 Dec 2017 from Fargo, ND
   
Twitter
Jillian Makes Bad MemesTM
@Jelizabethtweet
Replying to @ChongoTweet
“You either buckle down and do your work, or you’ll end up at McDonald’s.”
“We’re goin to McDonald’s if I don’t do my work?!?!?!?
“nO”
10:03 AM - 26 Mar 2018
 
Reddit—3amjokes
“Son you better buckle down and do your work or you’ll end up at McDonald’s.” self.3amjokes
Submitted April 13, 2018 by DanTheCan42
“We goin to McDonald’s If I don’t do my work?!”