1) The leader or authority in a group, especially in a group of friends.
2) 2007 Film "Alpha Dog": Johnny Truelove is an Alpha Dog
2) 2007 Film "Alpha Dog": Johnny Truelove is an Alpha Dog
by Tim51886 March 2, 2008

by Joe July 15, 2004

Quentin Tarantino's independent cult classic. About a heist that goes arought when one of the theives actually turns out to be an undercover cop. Is famous for the torturing scene where Mr. Blonde (Michael Madsen) severes a cop's ear off while dancing to Stuck In The Middle With You.
by WeezerFan December 6, 2005

the pimpest pet that a person can have. wiener dogs look like hot dogs with legs. they are awesome and will bite your ankles if you are an asshole cow fucker.
by masta blasta April 4, 2008

a creepy ass photo of a dog with human teeth and looks like it could be jason's dog (the one with hockey mask)
by Googlymoogly:D December 1, 2013

A devil dog is a member of the United States Marine Corps. It originates from a statement attributed to the German High Command, in remarking on the determinedness of the Marines, to the effect of "Wie sind die Teufelhundern ?", which means "Who are these Devil Dogs?"
The Marines have taken the comment as a compliment to their fighting ability, and refer to their comrades as "devil dogs": "hey there, devil dog" is a friendly greeting between Marines.
by Maximus March 13, 2003

by skin January 23, 2004
