To separate the fibres of a fibrous material.
To comb (originally with teasels) so that the fibres all lie in one direction.
To back-comb.
To poke fun at.
To provoke or disturb; to annoy.
To manipulate or influence the behavior of, especially by repeated acts of irritation.
To entice, tempt.
To show as forthcoming, in the manner of a teaser.
The act of teasing; making fun of or making light of.
Teasing can be seen as a kind of workplace abuse.