A measurement of time (not to be confused with an 'Instant', which is slower) when one finds themselves going from being motivated to vegged out. Closely related to Explosive Decompression.
"After working 12 hours, I went to the gym for 4 hours and when I got home maximum Laziocity was achieved after I started playing Call of Duty. "
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.