The lunch lady gave me only one carrot. I didn't carrot all.
Carrot All
Explanation
Explain Bear
Okay, so listen up, dummy. The joke is that "carrot" sounds like "care at all." The person only got one carrot from the lunch lady and is saying they "didn't carrot all" which is just a dumb way of saying they don't care. And you thought this was funny? I am disappoint.