“What do you call a lawyer who brews coffee?”/“A barristar.”

A “barrister” is a lawyer; a “barista” is a person who prepares coffee. Of course, there are jokes.
 
“In England, people who practice law are called ‘barristers’ while the people who make your coffee are called ‘lawyers.’ #coffeefacts” was posted on Twitter by Mark on March 12, 2010. “Thinking of opening a coffee shop especially aimed at lawyers, called The Barrister’s Barista. And a pub next door: ‘Called to the Bar’” was posted on Twitter by CorporateGorilla on September 20, 2012.   
 
A portmanteau of the two words is in this riddle that was posted on Reddit—3amjokes on October 2, 2019:
 
Q: What do you call a lawyer who brews coffee?
A: A barristar.
 
   
Twitter
Mark
@scrimshaw
In England, people who practice law are called “barristers” while the people who make your coffee are called “lawyers.” #coffeefacts
6:52 PM · Mar 12, 2010·Twitter Web Client
 
Twitter
Cin Peeler
@cinsbeenhere
Replying to @speeddy69
@speeddy69 making coffee. They’re called Baristas not be confused with barrister which is a lawyer.
7:05 PM · Jun 15, 2010·Twitter Web Client
 
Twitter     
CorporateGorilla
@CorporateGorila
Thinking of opening a coffee shop especially aimed at lawyers, called The Barrister’s Barista. And a pub next door: “Called to the Bar”.
5:16 AM · Sep 20, 2012·Twitter Web Client
 
Twitter
Dan Steel
@dansteel77
So what do you call a lawyer who specialises in coffee? #joke #original // a Barrista Barrister #budddum #sorry #hadtogetoutofsystem #taxi
7:14 AM · Dec 11, 2012·Twitter Web Client
 
Twitter
ContentQueenB
@ContentQueenB
Just made up a joke, what do you think?!
Q: What do you call a lawyer who likes coffee?
A: A barrister
4:14 PM · Sep 9, 2013·Twitter for iPhone
 
Twitter
Steven 🏳️‍🌈
@McJoberdeen
“It’s about a British lawyer who works in a coffee shop. It’s called…”
“No”
“Barrister Barista”
“Get out”
6:02 AM · Jun 2, 2017·Twitter for iPhone
       
Twitter
DaniSmash
@danismashingit
Replying to @McFaul and @YNB
He said barrister? So technically he called her coffee lawyer.
6:55 PM · Feb 6, 2019·Twitter for iPhone
 
Twitter
Sis
@ajmusira
Replying to @matrixster and @thekadenge
Oooohhhhh! The one that makes coffee is called a barista. A Barrister is a lawyer.
3:30 PM · Aug 27, 2019·Twitter Web App
 
Reddit—3amjokes
u/YeetDeSleet October 2, 2019
What do you call a lawyer who brews coffee?
A barristar