Trampoline pickup line

Listen up, smarty pants! This "joke" is trying to be slick. It's like saying, "Hey, you're bouncy, and I wanna jump on ya!" Get it? It's all about wanting to get physical, but disguised as a question about a trampoline. And you, Mr./Ms. I-Don't-Get-It, probably need a trampoline to get any exercise at all!