Top definition
Acronym for 'thank god it's'

Most commonly known in the American Resteraunt, TGI Fridays.
1. TGI Friday man!
2. TGI not too late to hand in my homework
by Foops June 28, 2008
Get the mug
Get a TGI mug for your brother James.
3
TGI is a acronym for Tweaker gang industries

Normal for meth users to saying Tweaker gang industry do u want to try our new shake n bake

And many including me have it as a tattoo to remember their past or to show off they were a tweaker
Meth head 1: TGI every day man

Meth head 2: hell yeah Man U got the tat yet
Meth head 1: yeah man I am committed
via giphy
by Drug guy 88 gang June 15, 2018
Get the mug
Get a TGI mug for your barber Nathalie.