Someone you're not in a relationship with but you act like you are. Often times the guy prefers video games and watching netflix over the girl and makes her feel unwanted. Can be a relationship status in itself without the extra baggage of saying girlfriend or boyfriend.
Susy: We really like each other but he hasn't asked me out. He probably never will so I just call him my date mate, and it rhymes!
by Realathlete September 29, 2014
When you're mate wants you to fuck their BF/GF and you can't do it cos you have too much self respect and you honor your friendships.
Mate 1: Mate, you should help me fuck Chelsea! She's gaggin for you!
Mate 2: Sorry man, i don't fuck my mates' girlfriends. Mates before dates bud, mates before dates.
Mate 2: Sorry man, i don't fuck my mates' girlfriends. Mates before dates bud, mates before dates.
by Jeed September 25, 2008