Puerto Rican License Plate 

Tattoo at the small of the back above the buttocks usually visible when low rise jeans are worn.

John: "My gf wants a tramp stamp"
Dave: "Dude, Puerto Rican License Plates should be illegal"

Puerto Rican License Plate by joerockets September 15, 2009

M-plate 

Special license plates given to members of the Chicago law enforcement agencies.

Altough the car was unmarked, we knew it was a cop because of the m-plate.

M-plate by Nene0715 August 13, 2008

booty plate 

pubescent teen male buffet, a.k.a the mexican taco

pablo:"my booty plate is finally clean"

whore-hey:"so is your green card"

booty plate by landonn is so wicked October 16, 2009

reinforcement plate 

An extra paper plate that you grab to put under the first to add reinforcement (in case it gets soggy, deformed, etc). Some of the time, one will keep the reinforcement plate, and only replace the top plate. The same can apply to cups.

Bob: Hey, Steve! I can't help but notice that you keep grabbing 2 or more plates everytime you come back up to get some mashed potatoes.
Steve: Oh, those are reinforcement plates.
Bob: Okay, but could you stop eating all the chicken?

reinforcement plate by 73H L337 H4X0R!!1 July 12, 2010

idiot plate 

an LCD/plasma TV. Negative connotation.

jane: hey, i have purchased an idiot plate
rikki: what's wrong with your present TV?
jane: off with the old-fashioned idiot boxes

idiot plate by judasray November 16, 2010

Biffer Plate 

A flat surface or tray used to hold your freshly ground herb. A 'biffer plate' also makes it easier to pass the herb to your buddies.

Yo dude, pass me the 'biffer plate' so I can pack a bong!

Biffer Plate by PitBullStoner April 14, 2011

Shame Plate 

When you order food at a restaurant and don't finish everything on your plate. You should feel shame at this point.

I went to Hot Rod's BBQ and got so much food I was left with a Shame Plate.

Shame Plate by New Jersey Nick September 19, 2011