ned ryersoning

That thing where you keep meeting someone when drinking and introduce yourself, forgetting you've already met them because you were drunk last time you met. Based on Groundhog's Day where Ned Ryerson (Stephen Tobolowsky) keeps introducing himself to Bill Murray's character, unaware they've been in the same situation many times before.

It works better if you end the awkward re-introduction with "Bing"

"Hi, I'm Mac"
"I know."
"We've met before? Was I drunk?"
"Yes to both."
"So I'm Ned Ryersoning you right now, arnt I?"
"Yes."
"Bing."