look up any word, like thot:
 
2.
When your mate says he cant meet up because he's working overtime and then wonders out at 6 oclock and still doesnt come out.
Nigel Wagner said he couldnt come out on wednesday because he was working overtime and then left work at 6. The same time as Ben left but who did come. This is what you call being a badmate
by goodmate December 09, 2010
 
1.
a person who neglects his friends for other less cool interests.
Me: Wanna come talk on Skype?
Noel: Nah playing GTA with my online friends
Me: Dont be a bad mate.
by BR3TONN December 28, 2011