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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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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A book in which a person writes things that make them feel good, nice things people have said, and anything that may boost their self esteem.
I passed the test! That's going in my self esteem book.
by Besty January 2, 2006
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self esteem is how u feel about urself. low self-esteem is when u dont like urself, or u feel bad about urself.
thats one reason ppl make fun of other ppl, b/c they have low self-esteem
many shy ppl can have low self-esteem; thus that can be a reason why they're so shy.
some ppl make fun of certain ppl and mess with them a lot, b/c they have low-self esteem..b/c they feel bad about themselves, or they have something they dont like about themselves, so they make fun of someone and when they get other ppl laughing they feel better about themselves, or they feel good that they got something out of that person.
by c_tina August 24, 2008
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