Threshold

[Donald Trump]

The plank, stone, or piece of timber, which lies under a
door, especially of a dwelling house, church, temple, or the like; the
doorsill; hence, entrance; gate; door.

[Kit]

The [threshold] refers to a certain point in the ratings system. In order to understand the threshold, a definition of the rating system must be given. The rating is a system used to rate either men or women and it is a score out of 10. [5 points] are for the personality/character and the other 5 are designated exclusively for looks. When you see a person and which to rate them purely on looks, a [premature] rating out of 5 is given.
Now the threshold refers to the point in which the other person you have rated is rated so highly to you that you would wish to sleep with them. The threshold is between [7.5] and 10.0. It must be noted that there is no threshold on a premature rating because before sleeping with someone, it is imperative that you must have some form of verbal contact with them unless of course you are a rapist. This system operates on the presumption that if one finds another attractive, theyd want to sleep with them.
Note: A [high score] is typically anything above an 8. Just like the [NFL draft] ratings system.

[Cami]

[Academic] [speed bump]

[Kai]

A strip of wood, metal, or stone forming the bottom of a doorway and crossed in entering a house or room.

[Tariq Zaki]

the floor of an entrance to a building or room