What does Bossment mean?

Bossment meaning in Urban Dictionary

1) an underground lair in which folks gather to pre-game before moving out to taverns. Includes a Bar, Beers, Beruit Table, Jukebox, Piano, Beer paraphernalia, Wrestling Championship Belts, HDTV, and several, numerous bare bottles of over 2000 various bottled beers. It is not known what amount of among these locations exist.