A driver who impedes traffic flow because he or she has his or her fingers up the ass (either figuratively or actually)instead of on the wheel.
by bardolino December 27, 2008
Get the Shitfingermug. by Peter McMillan April 2, 2008
Get the shitfingermug. by S Hayes June 11, 2003
Get the shitfingermug. An exclamation of frustration that is usually after a realisation that something unfortunate has happened.
by Ziggy Sue Marmalade October 6, 2008
Get the shitfingersmug. by King of alliance NE May 1, 2009
Get the Shitfingermug.