A term or phrase used to describe a great deal of effort, an alternative to going 100% (ie putting 100% of effort in).
Note: 'Tryhards' always go hundies.
Runner/Person One: 'How hard were you going back there?'
Runner/Person Two: 'I was going hundies.'
Gamer 1: 'I was going hundies on that last game!'
Gamer 2: 'Still had a lower KDR than me though!'