All 6 Uses

mock
in
The Maze Runner
(Auto-generated)

And then, as if his brain were mocking him, trying to make it worse, he had a thought.
p. 75.4 *

mocking = making fun of
Seven o'clock, Greenie," Newt said with a mocking smile.†
p. 97.2
Thomas turned to see his original pursuer still coming, though it had slowed a bit, clasping and unclasping a metal claw as if mocking him, laughing.†
p. 134.1
"After you," Minho said with a mocking bow.†
p. 205.4
Alby took his ring of keys from his pocket and rattled them mockingly—Thomas couldn't believe the sudden bravery.†
p. 251.8
Well, it's a good thing we saved those Maps," Minho said, completely straight-faced, almost mocking.†
p. 311.9

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