1 definition by lawliet_223344

HDW

HDW is an acronym for Hyper Dying Will. It is a state in which Tsuna from Hitman Reborn goes into where he completes a task as if he is about to die; with his dying will.

Tsuna went into HDW mode to beat the captain of the boxing club.

by lawliet_223344 July 12, 2010