noun. Two or more lawbags of the same student body having sexual relations with each other.
See also; Lawbag, Incest
"Wow, did you hear that L3 is boning that L1? That was the worst case of Lawcest I have ever heard of!"
The lawbags do not have to be related. They merely need to be enrolled in the same lawschool.
Because of the nationwide epidemic of lack of attractiveness in the law school student body, this is usually done through an act of desperation by each party.