Culling

[Julian]

[Culling] is the process of seasonally removing friends from a group based on specific [criteria]. This is done either to [reinforce] certain desirable characteristics, such as werewolfism (the term for having fun drunken alter egos), or to remove certain undesirable characteristics, such as snailism (the term for excessively hanging around when no one wants you there). The process of [culling] usually involves large amounts of salt.

[Mark Zuckerberg]

Reduction of a wild animal population by selective slaughter.

[Gregory]

present participle of cull