"that sweater makes you look like a gaf."
by F***ing_Baller August 17, 2009

One who is well known for sucking huge ammounts of cock. Also this person may dabble in the art of midget fucking.
by ESCALAD3 December 30, 2008

Past tense form of the word gaff; the uncontrolled cough exibited by a meth user directly following intravenious injection.
After shooting up the dope I scored upstairs last night I immeadiately "gaffed" and experianced a very intense euphoria.
by MerryChrismeth April 24, 2010

A Gaf is a person that annoys another person. A gaf is not only one kind of person it can be anyone that just bugs another it is also used as a slang amoung friends almost like "you are weird".
by Satsu&Marina February 25, 2009

by FamicomFanboy April 9, 2005

by joe-the-person-not-called-joe February 18, 2003

usually bookended by asterisks, it is used online to mean that you are surprised, or to signify wide eyes.
*GAF* seriously?
by Ishkabibble August 20, 2003
