look up any word, like cleveland steamer:
 
1.
between friends with benefits and a relationship
We hook up, and are emotionally attached, but were definitely not in a relationship. I would call us borrowed.
by rebecca123s June 17, 2009
 
2.
To have stolen an item from a friend or colleague with the intention of returning it at a later date.
I have borrowed my boyfriend's jumper and he will eventually have it returned!
by Joe Bloggs November 12, 2003