A: I gained so much weight because my college dining hall is all-you-can-eat.
B: It's called the "freshman 15."
A: What is that exactly?
B: It's an expression to refer to the observation that many college freshmen gain weight.
A: Oh, I see. I definitely got the freshman 15 then.
B: You should use your college's gym.
A: I never have time.
B: Oh, please! You just have to make time.
A: I guess I should set an hour to work out.
B: That's the attitude I like to hear!
A: Did you gain any weight?
B: Yeah, I just wear big clothes to hide my fat.