Looking for a Stud?

Listen up, buttercup. This joke is all about wordplay. The person pretends to offer themselves as a "stud" (you know, someone desirable). But then, BAM! They reveal they have an STD (a sexually transmitted disease) and need "U" (you) to complete the acronym. It's a twist on expectations, kinda like when you think you're getting a compliment, but it's actually a backhanded insult. You wouldn't know anything about that though, would you?