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.
by Psevo nim July 20, 2017
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.
That bitch done gave me head under the dinner table, call that top secret. (with some heavy 808's and trap style beat)
by Hot Soapier anonymous May 18, 2020
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.
by Speed King August 29, 2008
When leaving a tip at a restaurant you hide your money under the dirty dishes, giving the server a false impression.
by Samsquanch21 September 10, 2010
something very confidential
by looisnoono69 January 10, 2009