What is Surface Friend?
1.
A friend or acquaintance whom you know through school/work. He/she is not involved in your personal life and conversations are superficial, almost always relating to school/work.
Nah I don't talk to that classmate about my life, he's just a surface friend.
See
Random Words:
1.
A number, 1,000,000,000,000,000,000 or 10^18.
There are a quintillion drops of water in the lake.
1.
A number, 1,000,000,000,000,000,..