To put (someone) down, or show disrespect by the use of insulting language or dismissive behaviour.
Dissertation.
An insult or put-down; an expression of disrespect.
Ampelodesmos mauritanicus syn. Ampelodesmos tenax, a reedy grass used for cordage.
To untruthfully speak of another in a belittling, deprecative, slighting manner, either in person or in absentia.
To speak nonsense or to lie.