Usually a shoe box filled with random pieces of broken items like watches, lighters, old cell phones, remotes, mp3 players, etc kept by a person on crystal meth. It is brought out when the owner is "gakked out" and in need of something to do so they try to "fix" the random items in the box but rarely, if ever, succeed. Will sometimes contain tools like screwdrivers or a dreamed, and random items they found on the ground somewhere like pieces of wire, chess pieces, coins, nuts, bolts , screws, razors., anything small that they think they can repair or use to repair something else. Generally kept in a closet, under the bed, or in a shed. A better alternative for tweakers to picking at their faces.
by Scatterbrainiac August 21, 2021
Get the gack boxmug. To ejaculate while slapping someone in the face with ur dick. Commonly used when black people are fighting over koolaid or other commonly used black stuff.
'I was fuckin this chick when i was at bj bell and then my friend yelled at me so i gack slapped his koolaid.'(gack slapped while koolaid is involved.)
by THAT1GUYFUCKINurmomW April 25, 2010
Get the gack slapmug. Very good marijuana bud. A superior strain of cannibus that has been found on display at the cannibus cup at least twice.
I got the GACK y0. y0y0 I'll give you 5 oz. of this gack I just got from vantown for a grand and a blowjob from your gf.
by Seattle (Big A) May 1, 2005
Get the gackmug. 
by maddawg 101 March 25, 2009
Get the Gackmug. noun. - Ritalin, Concerta, Vyvance, Adderall, or any other Psycho-Stimulant ADHD Drug.
verb. - the state of mind when on any psychostimulant or adhd drug; usually one listed above
verb. - the state of mind when on any psychostimulant or adhd drug; usually one listed above
by ProjectDiesel December 17, 2008
Get the Gackmug.