To be incredibly exhausted and tired, to the point of deliriousness. Often implies the exhibition of strange behaviours (weird verbalisations and lack of coordination) due to exhaustion.
Originated from a mispronounciation of drowsy (possibly due to exhaustion): dwousy.... Dwizzy
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.