The inconsiderate asshole who is to be blamed for everything that goes wrong in your life.
Example 1

I wanted to fry up some eggs and bacon for breakfast today, but Yesterday Me decided to eat the hole goddamn fridge empty.

Example 2
Guy 1: You know that psycho chick i finally got rid of a couple weeks ago?
Guy 2: Yeah?
Guy 1: Well Yesterday Me thought it'd be a laugh to call her up and go sleep with her. Now i'm stuck with her. Again!
Guy 2: Man, i really hate that guy!
by B0hem May 18, 2010
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Yesterday's Dick: The term is used when you engage in two sexual acts one after another, but on seperate days. For example engaging in intercourse friday, not showering, and recieving a blowjob on saturday morning.
Girlfriend: Ew, what is that flavour?!
You: Yesterdays dick, baby.
by Cutler & Curtis corp. April 18, 2010
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Something which was once popular, until it went uber-mainstream, and has now become passé
Grunge is so yesterday, get over it.
by Kung-Fu Jesus April 15, 2004
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Part of speech: Noun. An all-girl punk band from Memphis, TN formerly known as Heroine. Heroines of Yesterday is a femme-powered band, working to fight against negative female stereotypes in the rock music industry. Also, their music kicks some serious ass. Members: Frontwoman -Kaci McAnally, Lead guitarist - Maggie Ferrell, Bassist - Alexis Russell, Drummer - Tori Zehner.
Listening to Heroines of Yesterday makes my life better.
by Saxon Silus July 17, 2010
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When a persons foul-smelling body odour (B.O.) has aquired a stale musk, as if the person has smelled bad for a considerable amount of time and/or hasn't washed for several weeks.
Aw man, this alcoholic stinks like yesterday's B.O. It's making me gag.
by lauren's awesome words April 26, 2011
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Fry's super hero name after joining The New Justice Team. His super powers include super strength and super speed, but he can't fall faster than a gemerald or command sea creatures. He helped steal the Gemerald so that Leela's parents wouldn't be killed.
Leela-Do we have the ability to command sea creatures?

Fry-Hey Zoidberg, get in here

Zoidberg-Screw You
by Heroic Ling Ling November 25, 2004
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A term used to describe people who are ignored and forgotten right after they are no longer needed.
Moss: They toss us away like Yesterday's Jam!

Roy: Yes! Yesterday's Jam! That is what we are to them! Actually, you know what that doesn't really work as a thing because jam lasts for ages.
by Bazog May 3, 2023
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