Especially referring to someone you have a
history of hooking up with when drunk, but who you usually reject or refrain from said hookup with when
sober.
Origin: When sober, you may or may not want a cheeseburger, but when you're drunk, you can
never turn it down.
Friend 1: Did Luke hook up with
Lauren last night?
Friend 2: Of course he did, he was
hammered.
Friend 1: Why?
You know he always regrets it.
Friend 2: Dude, she's his cheeseburger.