A glock is a type of pistol. A rari is short for the word ferrari. So the term "glock in my rari" means gun in my ferrari.

glock is a kind of gun. rari is short for Ferrari. This has nothing to do with anal sex.

It means basically he says that he has a gun in his car

Glock = Gun made my the company Glock.

Rari = Short for Ferrari.

He has a cheap gun in his expensive car. This has nothing to do with anal sex.

Gun in my Ferrari