All 8 Uses of

mock
in
The Souls of Black Folk

But before that nameless prejudice that leaps beyond all this he stands helpless, dismayed, and well-nigh speechless; before that personal disrespect and mockery, the ridicule and systematic humiliation, the distortion of fact and wanton license of fancy, the cynical ignoring of the better and the boisterous welcoming of the worse, the all-pervading desire to inculcate disdain for everything black, from Toussaint to the devil,—before this there rises a sickening despair that would disarm and discourage any nation save that black host to whom "discouragement" is an unwritten word.†
Chpt 1

mockery = something that is ridiculous

—to a hope not hopeless but unhopeful, and seeing with those bright wondering eyes that peer into my soul a land whose freedom is to us a mockery and whose liberty a lie.†
Chpt 11 *

And yet month by month the congregation dwindled, week by week the hollow walls echoed more sharply, day by day the calls came fewer and fewer, and day by day the third temptation sat clearer and still more clearly within the Veil; a temptation, as it were, bland and smiling, with just a shade of mockery in its smooth tones.†
Chpt 12

Let the ears of a guilty people tingle with truth, and seventy millions sigh for the righteousness which exalteth nations, in this drear day when human brotherhood is mockery and a snare.†
Chpt Afte

With other black boys the strife was not so fiercely sunny: their youth shrunk into tasteless sycophancy, or into silent hatred of the pale world about them and mocking distrust of everything white; or wasted itself in a bitter cry, Why did God make me an outcast and a stranger in mine own house?†
Chpt 1

Suppose this mad impulse within is all wrong, some mock mirage from the untrue?†
Chpt 6 *

Some seer he seemed, that came not from the crimson Past or the gray To-come, but from the pulsing Now,—that mocking world which seemed to me at once so light and dark, so splendid and sordid.†
Chpt 12

Definitions:

(1) (mock as in: don't mock me)
make fun of (ridicule--sometimes by imitating in an exaggerated manner)

or (more rarely): just to make fun or to be ridiculous without targeting anyone as a victim

These senses of mockery come together when a comedian pokes fun at a politician by pretending to be the politician and saying ridiculous things.
(2) (mock as in: a mock trial)
not real
(3) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Less commonly, mock can refer to a way of preparing food. Mockers can be an abbreviation for mockingbirds.