Geez (hard 'G') is an intravenous shot of an illicit substance (e.g. IV meth or heroin). The slang was more heavily used in the 1960s.
by Nagelfar November 8, 2011

by Habbie January 26, 2011

by cj83 February 1, 2010

by Randy Bonjour June 19, 2006

to play a video game for an extended period of time and neglecting to carry out normal human functions like eating and sleeping.
by Jwi518 May 8, 2008

Geez is short for geezer. Geezer is an old person, usually a man. When you are shortening up a sentence (and trying to sound hip) you say geez, not geezer.
"Look at that geez over on the bench!"
by MsLi September 24, 2005
