1 [usually passive]
if something is peppered with things, it has a lot of those things in it or on it
be peppered with something
a speech peppered with amusing stories
The surface of the moon is peppered with craters.
if bullets pepper something, they hit it several times:
Machine gun fire peppered the front of the building.
3 American English
to ask someone a lot of questions, one after the other:
Reporters peppered him with questions.
to add pepper to food:
Pepper the steak well.