Two people are sitting on their bed. They have fishing rods and appear to be fishing from the floor.
They have fishing rods in the bedroom.
What are they fishing for?
I can't believe you used that line to get me in here.
scene: a bedroom description: Two people are sitting on their bed. They have fishing rods and appear to be fishing from the floor. uncanny: They have fishing rods in the bedroom. entities: Fishing, Marriage. caption: I can't believe you used that line to get me in here.
A play on the word "line" --- without the fishing context, this quip refers to pickup lines, and how she can't believe a corny/lame pickup line that he used actually worked to make them romantically get together. But here, "line" refers to fishing lines --- so it appears she wasn't attracted by a pickup line, rather, she was attracted by the fishing line, which is a more specific attraction based on a somewhat niche hobby.