It means that it is very hard to change someones habits
You can't teach an old dog new tricks when they have been used to using a cell phone instead of a smart phone.
by Zahraa June 13, 2017
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The full title of one of the most annoying Chips Challenge levels ever, featured in CCLP3.
Crap, You Can't Teach An Old Frog New Tricks is so damn hard!
by mypseudoonym... January 20, 2012
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When you can’t get what you’re working with up to the required standard
Jeff: “That bloke just isn’t cut out for the job”
Tim: “yeah mate, you can’t teach a Duck how to fly like an Eagle
by killacrip August 12, 2021
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National Teach your sons day

National reach your sons day is celebrated on April 24th, instead of national rape day, it’s national teach your sons day
Hey it’s national teach your sons day! Time to remind my son how to respect women
by THaNoS jeevanos April 20, 2021
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ESL Teaching

A "job" that many grifters, low-lifes, simpletons and garden variety retards do while living abroad as an expat. Many, if not all, of those that are currently teaching ESL have failed astronomically in their home country. This includes financially owning themselves by getting one of the many useless degrees offered by today's university. An incompetence to use any job-hunting website. It also includes burning a variety of bridges with all of their friends, associates and family members. And finally, it includes a general sense of running from all responsibility due to a severe case of arrested development.

Ironically, many of their students, ESL Speakers, are trying to have a better life, work hard and take life head on.
Blue-haired coffee shop barista: I double majored in English Creative Writing with an emphasis on poetry, and general Philosophy, and I've had it. I've been working here for 6 long years. Too long, too long. Next week, I'm moving for an ESL Teaching job abroad for $800/month. It's GOOD money, and allows me to save each month to pay off my $120,000 of student debt.
Engineer, former friend: That's great.
by Former Expat October 14, 2022
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Teach Me How To Stuckey

How to describe someone who can’t be stopped.
We could not stop the QB last night. He was trying to teach me how to Stuckey.
by QB1ndy September 23, 2022
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