You can Gits someone, to be Gitsed is to have your house decorated, prank style! In order to Gits you must tape up, silly string, fake snow etc someones house/apartment. To Gits, however, is not to cause damage or long term issues.

A young kid, or early teenager.

Gay in training!

Young gay learning the tricks.

Extremely large mamantary glands. Usually,but not always, exhibited by females. Short for Gigatits.
The G is always capitalized.

someone who is a right nasty bastard OR you can say someone looks like a git (mr bean type)

A no good bastard. One who refuses to accept people in the world. Like a dick only most people wont know what the hell your talking about. (Learned from Harry Potter books by J.K. Rowling) Prat.

Term often used by Delboy Trotter. Usually adressing Grandad or uncle Albert.