Sort of easy, Flipping the bird is giving the middle finger, or swearing.
A lemon is a bad car.
3. I nearly swore at the man who made me annoyed by trying to sell me a duff vehicle
Answer:
“With one boy in particular my mother had to sit me down and explain.”
Explanation:
Perhaps this one “boy” doesn’t want to be a boy anymore and gets offended when the main character refers to them as a “guy” or was never a guy to begin with. In that case it would make sense that the boy would get offended