Gadahar - Jackass
Galavant - Hanging around without doing anything constructive
Galvanize - Zinc sheets used to cover roofs
Galary - (Gallery) - Verandah or porch, Showing off, e.g. If yuh see how she galary sheself.
Game cock - A breed of cock (cockrel) bred for the sport of cock fighting.
Gams - The distance from your thumb to any finger. This was important when playing three hole marble pitch long time, especially if you had large hands.
Gayelle - A place, usually secretive, where cock fights occur (cock fighting is illegal in Trinidad and Tobago). Also, the name of a local television station (Gayelle TV).
Gazette paper - Newspaper
Get on - Misbehave, e.g. Man, why you gettin on so?- Why are you misbehaving?
Gilpin - Cutlass/machete
Goat mout' - Bad luck, usually when somebody predicts the bad outcome (sometimes good outcome) of an event and it really happens; e.g. He put goat mout' on meh;a cyah get a job
Gobar- Cattle dung
Go down - (Pertains to eating) Usage: Man, dat food go down good, it tasty too bad“The food was very delicious.
Goin' of - Someone who appears to be going out of their mind, acting strangely
Gone tru - Gone through. Past it's prime. No longer useful
Gouti - Agouti, e.g. Boy we ketch two gouti las night http://en.wikipedia.org/wiki/Common_agouti
Grancharge - To make threats about getting into a fight without the intention of carrying out the threat, a false threat; e.g. "He only granchargin' man!"
Guana - Iguana
Gundy- Crab claws
Gun talk - Fighting words, to threaten verbally
Gyul - Girl