A 19th century perpetual motion machine powered by steam, theorized by Alberto Einstein but no actual production models were ever built.
Alberto told the eager investors gathered in Plaza de Suenos that for as few as 500 Pesos they could own a piece of his revolucionary self esteem engine.
by megnao flimpis August 13, 2003
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esteem of your mother fucking self!
Boy- ur not so pretty

Girl-u just ruined my self-esteem

Boy- how can i ruin your self-esteem? its called SELF-esteem for a reason
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When you compensate with colourful and vibrant shelving systems when living in a rented house or apartment where the occupier is not allowed to paint or hang things up.
When I moved in here I needed something not in magnolia, so to boost my shelf esteem I bought those wild shelves.
by jonnimac November 18, 2010
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Abbreviated as "SEF"

The friend(s) of a highly attractive girl who's sole purpose is to make the attractive girl feel better about themselves and look perpetually times more attractive to guys.
Also, the SEF serves a double purpose as a cockblocker
Charlie: Yo check out that slut over at that table, shes hot as fuck. Im'a go get that.

Justin: Yeah dude, but check out all her friends.

Charlie: Fucking Self Esteem Friends...
by You Wont, No Balls May 15, 2011
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A status on facebook usually made by girls purposely written in a way because she knows the comments will make her feel good/pretty/ etc.
Annoying attention whore- *thinks* I feel ugly :(. I know! I'll go on facebook and make a self-esteem status

Annoying attention whore- I wish I looked like those victoria secret models! ugh :(

nicole- omg babigurl you do! &&luvu

brenda- you look way better than them!

Dave- shut up bitch
by brandon2k9 December 10, 2009
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Noun: A condition that exists when a person thinks way too highly of themselves.
Donald Trump's confidence is so off the charts he appears to have a self-esteem surplus.
by Jed Fearon January 19, 2009
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