To go out/date someone from another school. Commonly used in same sex schools as a majority of the people there are not homosexuals.Also used in co-ed schools.
Are you going to cross-breed with that guy from St Xaviers.
However not all cross breeds are designer dog breeds. Some aren't even recognised as a breed but are recognised as a 'type' of dog these types include the lurcher wich is a cross between a greyhound and another sight hound
Musically speaking: a Crossbreed is the coming together of two seemingly opposite styles, usually Hiphop/Rap crossing with another genre. A kind of Crossbreed commonly seen is a Wemo(see Wemo Kid). A Crossbreed can be Hiphop crossing Country (ie. Big n' Rich), Rock (ie. Beastie Boys, Limp Bizkit), Punk (ie. The Transplants) or Metal/Hardcore (ie E. Town Concrete)
Personally Speaking: a Crossbreed is someone who listens to said Crossbreed music(see above). Style of Crossbreed can be one of two: Open crossbreeds, someone that is open about the crossing of genres, like Wemo Kids(see Wemo Kid). and Closet Crossbreeds, much more common, someone that looks Punk/Rock/Counrty but secretly listens to Hiphop, and Vice-Versa Someone that looks Hiphop can listen to Punk/Rock/Country secretly.
*Can be used as a little known insult.
Big n Rich are Crossbreed music!
*Hahaha your such an effing crossbreed!