Step-by-step explanation:
In the book "The Hunger Games" by Suzanne Collins, Haymitch compares Katniss's charm to that of a dead slug.
This comparison is made early in the story, when Haymitch is first introduced as the mentor for Katniss and Peeta in the Hunger Games. Haymitch is initially frustrated with Katniss's lack of social skills and her reluctance to play up to the Capitol's expectations of the tributes. He tells her that she needs to be more charming and likable to win over the sponsors and gain an advantage in the Games.
When Katniss struggles to understand what Haymitch means by "charm," he compares her current demeanor to that of a dead slug, implying that she is unappealing and uninteresting. This harsh criticism motivates Katniss to work on her social skills and try to present a more likable version of herself to the Capitol audience.
Over time, Katniss develops her own style of charm and begins to win over the sponsors and viewers of the Games in her own way, without compromising her values or identity.