https://manpages.ubuntu.com/manpages/resolute/man6/dangerball.6x.html
Ubuntu Manpage: dangerball - a 3D ball that periodically extrudes spikes. Ouch!
a 3D ball that periodically extrudes spikes. Ouch!
ubuntumanpage
https://nationaldangerballassociation.com/
NATIONAL DANGERBALL ASSOCIATION - National DangerBall Association - NDBA
Mar 25, 2020 - Dangerball, a spherical or conical projectile, round or ball-like, roundish body or mass used in a game or sport exposing players too hard, damage, exposure or...
nationalassociationndba