ref: wordgay/word

I couldn’t care less (but one must keep up appearances, right?)

one who loves the cock on 5 million levels

Abbreviation for "pretty OK."

The equivalent of tapping or drumming your finger on a table.

The three letters on the keyboard 'P' 'O' 'K' are in prime position for your fingers to drum across these letters on the keyboard.

A Chinese dish, often served with sweet 'n sour sauce.

"POK" is the infamous sound made by a tennis ball coming in contact with a perfectly placed swing of a tennis raquet.
POK is also the term given to ThumbDrives or USB Drives (USB Mass storage devices).
This term is derived from the brand name of Hewlett-Packard USB Drives called the "PockiDrive".
Shortened, edited and combined with the personified "POK" sound, the term "POK" took over the old USB(Thumb)Drive.