What is Friendship Tax?
1.
small amounts of money that are borrowed without having to give it back.
joe - hey, can i have that quarter back that i let you borrow yesterday?
geoff - are you kidding? dude, its 25 cents. friendship tax. don't be such a cheapo.
See 
Random Words:
1. 
Osgood-Schlatter disease (also known as tibial tubercle apophyseal traction injury) is an inflammation of the growth plate at the tibial..