1. A person who you would describe as more than a friend but not a girlfriend or boyfriend. It become completely obvious that you have a umm...friend if you have to think for awhile before introducing them as a friend.
2. A person who you have no-strings-attached sex with.
1. Person A: Where's Andrew?
Person B: With Jenna his umm...friend.
2. Person A: So sex?
Person B: Sure but lets just be umm...friends.