- A beast is usually construed as a powerful or overwhelming force and this gives you a metaphorical relationship between how you completed the action and being beast-like. The mode is just shows that its something that can be turned on and off.
beastmode
noun; analogy
To be much more impressive than usual in an action
Etymology : Comes from a compounding of beast, powerful creature, and mode, phase of consciousness
Source : "Alright now its time to turn on beastmode!" -myself at the beginning of a match
Last modified: 6 December 2011