What's the difference between a Lambo and a boner?
Your sister didn't give me a Lambo.
What's the difference between a Lambo and a boner?
Your sister didn't give me a Lambo.
The joke plays on the double entendre of 'boner,' meaning both an erection and a mistake. The punchline reveals a crude sexual context, implying the sister's rejection is the reason for not owning a Lamborghini.
Sister
Well yeah that's kinda true