Student or Learner
I guess those are slang terms:
Snapper tilted his head up and barked once. She looked down and shook a finger at him. "Now, you be quiet. Go get your comida."
What is "comida"?
You were still a scrawny punk. Thank God your parents had the presence of mind to fix those pearlies. jesus, man, you look like a walrus."
What are pearlies?
And, if this guy were scrawny, how could he look like a walrus, which I suppose look fat?
Comida = food
Pearlies = teeth