Glizzy could be short for Glock, or also used for hotdog/weenie

Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.

A Hot Dog

I thought it was a cock but it’s a hot dog

Its a fucking Hot dog

Once known as a glock made famous by rapper Shy Glizzy now currently known as a Hot Dog yea Shy glizzy gang is Shy hot dog gang

Another word for a hotdog in DC.