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The name of a straight Methamphetamine shot meant to shoot up intravenously or rectaly. The word is used primarily to speak in public.
Ex bf: Hey hook me up a gizmachi and I’ll make you a gizmachi too, for old times sake!

Ex gf: James I don’t fucking tweak it no more get out of my face fool
Gizmachi by MellowKitten November 6, 2018
Related Words
To define a sexual act or the feeling of a sexual act that was beyond belief or expectations, when all other descriptive words can not .
Last night was totally Gizmatic
Gizmatic by LanceLeo May 16, 2011
a female who doesn’t care for anyone nor anything.
she’s a gizma, she’s the best.
gizma by gayfagwholiveshere September 20, 2020
The female version of "Gizmo"
Also: An Amazing chick with huge tits and an amazing ass. Wild and out of control at times but always fun to be around!
Man I wish we could get Gizma to come party with us!
Gizma by Brandon Azimely April 9, 2011
one who could also be called a "bizzy bodii", meaning one who goes around everywhere entertaining herself with many different men with no intentions of settling down.
Dang, that girl is a gizzy bodi!! gizman
gizman by fifizzayy November 16, 2009

gizmanaut 

the gizmanauts were hoppin off me in the pub last night :ie there were a lot of idiots around
gizmanaut by sham August 19, 2003