The meaning of the word "hot" when a guy says it to a girl can vary depending on the context and the relationship between the two individuals. In most cases, it is used as a compliment to express physical attractiveness. When a guy calls a girl "hot," he is typically conveying that he finds her physically appealing or sexually attractive.
However, it's essential to recognize that language and intentions can be subjective and context-dependent. Some individuals may use the term casually and innocently, while others might use it in a more objectifying or inappropriate manner. The meaning and intent behind the word "hot" can be influenced by factors such as tone of voice, body language, and the overall context of the conversation.
If you feel uncomfortable or unsure about how someone is using this term, it's important to trust your instincts and communicate openly with the person about your feelings. Mutual respect and clear communication are crucial in any relationship or interaction.