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
 Get the Gafmug.
Get the Gafmug. by FamicomFanboy April 9, 2005
 Get the gafmug.
Get the gafmug. by joe-the-person-not-called-joe February 18, 2003
 Get the gafmug.
Get the gafmug. 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
 Get the gafmug.
Get the gafmug. "Yo go gaf that shit over there"
by Peachez June 9, 2004
 Get the gafmug.
Get the gafmug. by Lynerally January 1, 2019
 Get the GAFmug.
Get the GAFmug.