" top secret "

 [ "Top secret" ]

1: When your bigger brother/ sister hides something on the top shelf and you don't know what it is because you're too short to see it.

  * e.g.,  ... My brother has been bothering me with that top secret for months. 

 [ "Top Secret" ]

1: When a woman (or man) is fellating another man (or woman) and there are other parties involved in conversation with, or adjacent to the recipient that are not privy to the current action.

  * e.g.,  ... That bitch done gave me head under the dinner table, call that top secret. (with some heavy 808's and trap style beat) 

 [ "TOP SECRET GOLD" ]

1: A color of paint that is TOP SECRET. Though there are many requests for the "color code" for Top Secret Gold paint, no such code exists nor is it available from any paint or body shop. This color is a custom blend made from only the finest materials. The paint is usually available for around $500 per quart, pending the approval of the vehicle it is to be used on.

  * e.g.,  ... Dan Cicu's Top Secret Gold Toyota Supra 

 [ "Top Secret Tip" ]

1: When leaving a tip at a restaurant you hide your money under the dirty dishes, giving the server a false impression.

  * e.g.,  ... I thought those people stiffed me but they left a top secret tip 

 [ "low key top secret" ]

1: something very confidential

  * e.g.,  ... So how far did you get with Amber last nite? 

 [ "top secret" ]

1: The definition is so top secret, we can't even tell you the definition.

  * e.g.,  ... THE EXAMPLE IS ALSO TOP SECRET.