There ain't no such thing as a free lunch
You're going to have to give me more than 150 gold for the steel armor. TANSTAAFL!
|TANSTAFL||There ain't no such thing as a free lunch|
|F2P||Free to play|
|Freebie||A free item or service|
|FOC||Free of charge|
Another way of saying, "Nothing is for free;" perhaps used in MMO games when trading items.