“What do you use to buy bar drinks?”/“Bar tender.”

A bar riddle is:
 
Q: What do you use to buy drinks?
A: Bar tender
 
The joke was posted on Reddit on July 11, 2016.
 
   
reddit
What do you use to buy drinks?
submitted July 11, 2016 by signalranch
Bar tender
 
Twitter
DaviesPrice
‏@eduardzuev68o
What do you use to buy drinks? Bar tender #hahahah
1:42 AM - 11 Jul 2016
 
Twitter
SidneyAshley
‏@IlyasermiAshley
What do you use to buy drinks? Bar tender #LMAO
1:47 AM - 11 Jul 2016
 
Twitter
sandrasstoner
‏@sandrasstoner1
What do you use to buy drinks? Bar tender #ROFL
2:04 AM - 11 Jul 2016