חפשו מילה כלשהי, כמו fleek:
 
1.
A portmanteau combining the words Coefficient of Friction. It is popularly used with university students studying physics.
It was first discovered at the University of Regina, by an undergraduate physics education student.
The kinetic coeffrictiont of nickel is 0.53.
מאת K.E. McIver 27 במרץ, 2007